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"created" : "2023-04-17T13:40:35.000Z" ,
"modified" : "2023-04-17T13:40:35.000Z" ,
"description" : "ENVYSCOUT delivering SNOWYAMBER ISO" ,
"pattern" : "[url:value = 'literaturaelsalvador.com/Schedule.html']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:40:35Z" ,
"kill_chain_phases" : [
{
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"phase_name" : "Network activity"
}
] ,
"labels" : [
"misp:type=\"url\"" ,
"misp:category=\"Network activity\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--6d824e3d-4f47-47a1-bb16-004fbe3f883b" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:40:35.000Z" ,
"modified" : "2023-04-17T13:40:35.000Z" ,
"description" : "ENVYSCOUT URL" ,
"pattern" : "[url:value = 'parquesanrafael.cl/note.html']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:40:35Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "Network activity"
}
] ,
"labels" : [
"misp:type=\"url\"" ,
"misp:category=\"Network activity\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--735b8086-30e6-48f0-b41f-176143a0cecd" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:40:35.000Z" ,
"modified" : "2023-04-17T13:40:35.000Z" ,
"description" : "ENVYSCOUT URL" ,
"pattern" : "[url:value = 'inovaoftalmologia.com.br/form.html']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:40:35Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "Network activity"
}
] ,
"labels" : [
"misp:type=\"url\"" ,
"misp:category=\"Network activity\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--2370ce17-a271-4cb6-b6eb-f7342ffc6415" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:43:43.000Z" ,
"modified" : "2023-04-17T13:43:43.000Z" ,
"description" : "Used to distribute phishing emails with a link to ENVYSCOUT" ,
"pattern" : "[email-message:from_ref.value = 'miodrag.sekulic@mod.gov.rs']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:43:43Z" ,
"kill_chain_phases" : [
{
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"phase_name" : "Payload delivery"
}
] ,
"labels" : [
"misp:type=\"email-src\"" ,
"misp:category=\"Payload delivery\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
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"id" : "indicator--4af4ff1a-5174-463c-b3d7-a5ed83251879" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
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"modified" : "2023-04-17T13:43:43.000Z" ,
"description" : "Used to distribute phishing emails with a link to ENVYSCOUT" ,
"pattern" : "[email-message:from_ref.value = 'bohuslava.kopalova@seznam.cz']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:43:43Z" ,
"kill_chain_phases" : [
{
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"phase_name" : "Payload delivery"
}
] ,
"labels" : [
"misp:type=\"email-src\"" ,
"misp:category=\"Payload delivery\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
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"id" : "indicator--d984944c-9e4d-4a17-92df-5629b25f3195" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
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"modified" : "2023-04-17T13:43:43.000Z" ,
"description" : "Used to distribute phishing emails with a link to i.php (reconnaissance?)" ,
"pattern" : "[email-message:from_ref.value = 'navratilova.lucie.etnologie@seznam.cz']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
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}
] ,
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"misp:category=\"Payload delivery\"" ,
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]
} ,
{
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"description" : "Used to distribute phishing emails with a link to ENVYSCOUT" ,
"pattern" : "[email-message:from_ref.value = 'zdenek.holych@seznam.cz']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:43:43Z" ,
"kill_chain_phases" : [
{
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}
] ,
"labels" : [
"misp:type=\"email-src\"" ,
"misp:category=\"Payload delivery\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "x-misp-object" ,
"spec_version" : "2.1" ,
"id" : "x-misp-object--443b388e-54ed-4a9d-b628-a6b90807a495" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T10:10:16.000Z" ,
"modified" : "2023-04-17T10:10:16.000Z" ,
"labels" : [
"misp:name=\"report\"" ,
"misp:meta-category=\"misc\""
] ,
"x_misp_attributes" : [
{
"type" : "link" ,
"object_relation" : "link" ,
"value" : "https://www.gov.pl/attachment/ee91f24d-3e67-436d-aa50-7fa56acf789d" ,
"category" : "External analysis" ,
"uuid" : "b04589cb-5c03-42fc-b43f-205b9b450aeb"
} ,
{
"type" : "text" ,
"object_relation" : "summary" ,
"value" : "SNOWYAMBER is a dropper that was used in an espionage campaign significantly overlapping with publicly described activity linked to the APT29 and NOBELIUM activity sets. SNOWYAMBER abuses the NOTION collaboration service as a communication channel. It does not contain any other capabilities aside from downloading and executing 2nd stage. To bypass security products, SNOWYAMBER uses several antidetection and obfuscation techniques, including string encryption, dynamic API resolving, EDR/AV unhooking, and direct syscalls." ,
"category" : "Other" ,
"uuid" : "581fcaf2-9e37-4c87-9b3c-8d19b827bae3"
} ,
{
"type" : "text" ,
"object_relation" : "type" ,
"value" : "Report" ,
"category" : "Other" ,
"uuid" : "ca09fdca-c324-4a9b-a2dd-0040f07675a9"
} ,
{
"type" : "attachment" ,
"object_relation" : "report-file" ,
"value" : "SNOWYAMBER_.pdf" ,
"category" : "External analysis" ,
"uuid" : "746857c1-6069-48a8-ae9f-6e8d68f2e191" ,
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} ,
{
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} ,
{
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} ,
{
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"modified" : "2023-04-17T11:55:08.000Z" ,
"pattern" : "[file:name = 'Instructions.lnk']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T11:55:08Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "file"
}
] ,
"labels" : [
"misp:name=\"file\"" ,
"misp:meta-category=\"file\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--88421de8-4479-4a9c-9433-9d918795a10b" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:13:28.000Z" ,
"modified" : "2023-04-17T13:13:28.000Z" ,
"description" : "It seems that the adversary made a mistake while compiling this sample. Internal functions were added to exports (authored by the adversary as well as those from libraries: SysWhispers3, Nlohmann JSON, Obfuscate). While binary itself is stripped, those exported functions have names that can be demangled revealing naming, prototypes and datatypes." ,
"pattern" : "[file:hashes.MD5 = 'cf36bf564fbb7d5ec4cec9b0f185f6c9' AND file:hashes.SHA1 = '8eb64670c10505322d45f6114bc9f7de0826e3a1' AND file:hashes.SHA256 = 'e957326b2167fa7ccd508cbf531779a28bfce75eb2635ab81826a522979aeb98' AND file:name = 'BugSplatRc64.dll' AND file:size = '271360']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-02-08T00:00:00Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "file"
}
] ,
"labels" : [
"misp:name=\"file\"" ,
"misp:meta-category=\"file\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--515a4264-5f6e-4690-b9b0-6eb6a31aa972" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T12:52:58.000Z" ,
"modified" : "2023-04-17T12:52:58.000Z" ,
"name" : "APT29_SNOWYAMBER" ,
"pattern" : "rule APT29_SNOWYAMBER\r\n{\r\nmeta:\r\ndescription = \\\\\"Detects APT29-linked SNOWYAMBER dropper\\\\\"\r\nstrings:\r\n// Payload decryption loop\r\n// Custom algorithm based on XOR\r\n$op_decrypt_payload = {49 8B 45 08 48 ?? ?? ?? 48 39 ?? 76 2B 48 89 C8 31 D2 4C 8B 4C 24 ?? 48 F7 74 24 ?? 49 8B 45\r\n00 41 8A 14 11 32 54 08 10 89 C8 41 0F AF C0 31 C2 88 14 0B 48 FF C1}\r\n// Decryption routine generated by Obfuscate library\r\n$op_decrypt_string = {48 39 D0 74 19 48 89 C1 4D 89 C2 83 E1 07 48 C1 E1 03 49 D3 EA 45 30 14 01 48 FF C0 EB E2}\r\n// Hardcoded inital value used as beaconing counter\r\n$op_initialize_emoji = {C6 [3] A5 66 [4] F0 9F}\r\n// src/json.hpp - string left in binary using nlohmann JSON\r\n$str_nlohmann = {73 72 63 2F 6A 73 6F 6E 2E 68 70 70 00}\r\ncondition:\r\nuint16(0) == 0x5A4D\r\nand\r\nfilesize < 500KB\r\nand\r\n$str_nlohmann\r\nand\r\n$op_decrypt_string\r\nand\r\n($op_initialize_emoji or $op_decrypt_payload)\r\n}" ,
"pattern_type" : "yara" ,
2023-12-14 14:30:15 +00:00
"pattern_version" : "2.1" ,
2023-04-21 14:44:17 +00:00
"valid_from" : "2023-04-17T12:52:58Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "misc"
}
] ,
"labels" : [
"misp:name=\"yara\"" ,
"misp:meta-category=\"misc\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--11702c83-79b9-4a02-9e48-93534a11ed08" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:23:23.000Z" ,
"modified" : "2023-04-17T13:23:23.000Z" ,
"pattern" : "[file:hashes.MD5 = '82ecb8474efe5fedcb8f57b8aafa93d2' AND file:hashes.SHA1 = '3fd43de3c9f7609c52da71c1fc4c01ce0b5ac74c' AND file:hashes.SHA256 = '4d92a4cecb62d237647a20d2cdfd944d5a29c1a14b274d729e9c8ccca1f0b68b' AND file:name = 'BugSplatRc64.dll' AND file:size = '301056']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:23:23Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "file"
}
] ,
"labels" : [
"misp:name=\"file\"" ,
"misp:meta-category=\"file\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--2a667d0c-1f7f-41d4-8ba2-2e44d839b432" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:33:33.000Z" ,
"modified" : "2023-04-17T13:33:33.000Z" ,
"description" : "2nd stage - CobaltStrike beacon (decrypted)" ,
"pattern" : "[file:hashes.MD5 = '800db035f9b6f1e86a7f446a8a8e3947' AND file:hashes.SHA1 = 'aaf973a56b17a0a82cf1b3a49ff68da1c50283d4' AND file:hashes.SHA256 = '032855b043108967a6c2de154624c16b70a0b7d0d0a0e93064b387f59537cc1e' AND file:name = 'hXaIk1725.pdf' AND file:size = '261635']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:33:33Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "file"
}
] ,
"labels" : [
"misp:name=\"file\"" ,
"misp:meta-category=\"file\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "indicator" ,
"spec_version" : "2.1" ,
"id" : "indicator--26da3ae3-4d28-49c3-a4d7-2b86cca4f59a" ,
"created_by_ref" : "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f" ,
"created" : "2023-04-17T13:35:25.000Z" ,
"modified" : "2023-04-17T13:35:25.000Z" ,
"description" : "2nd stage \u2013 BruteRatel stageless badger (decrypted)" ,
"pattern" : "[file:hashes.MD5 = '0e594576bb36b025e80eab7c35dc885e' AND file:hashes.SHA1 = 'a8a82a7da2979b128cbeddf4e70f9d5725ef666b' AND file:hashes.SHA256 = 'ec687a447ca036b10c28c1f9e1e9cef9f2078fdbc2ffdb4d8dd32e834b310c0d' AND file:name = 'hXaIk1314.pdf' AND file:size = '347837']" ,
"pattern_type" : "stix" ,
"pattern_version" : "2.1" ,
"valid_from" : "2023-04-17T13:35:25Z" ,
"kill_chain_phases" : [
{
"kill_chain_name" : "misp-category" ,
"phase_name" : "file"
}
] ,
"labels" : [
"misp:name=\"file\"" ,
"misp:meta-category=\"file\"" ,
"misp:to_ids=\"True\""
]
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--5c9499d5-2878-405c-ae08-0daa8f08f601" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:35:13.000Z" ,
"modified" : "2023-04-17T11:35:13.000Z" ,
"relationship_type" : "contained-within" ,
"source_ref" : "indicator--75ed444d-3ce9-470c-9ea7-dc4e6eb7c3ca" ,
"target_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a"
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--f9159295-ce20-495e-b7f2-107d55f31b23" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:33:58.000Z" ,
"modified" : "2023-04-17T11:33:58.000Z" ,
"relationship_type" : "contains" ,
"source_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a" ,
"target_ref" : "indicator--63cb13b4-f8d5-42eb-819d-7ae6f4c992ed"
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--c27448f8-999f-4a24-ad63-39e54d12b778" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:34:12.000Z" ,
"modified" : "2023-04-17T11:34:12.000Z" ,
"relationship_type" : "contains" ,
"source_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a" ,
"target_ref" : "indicator--ba9983ca-8bd7-410c-a9e9-f96fa47fc920"
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--192c6274-b477-4d51-a3bd-949e0d870a62" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:34:34.000Z" ,
"modified" : "2023-04-17T11:34:34.000Z" ,
"relationship_type" : "contains" ,
"source_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a" ,
"target_ref" : "indicator--75ed444d-3ce9-470c-9ea7-dc4e6eb7c3ca"
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--3656bece-66ea-4ad4-8380-aa94083d0e63" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:35:38.000Z" ,
"modified" : "2023-04-17T11:35:38.000Z" ,
"relationship_type" : "contained-within" ,
"source_ref" : "indicator--63cb13b4-f8d5-42eb-819d-7ae6f4c992ed" ,
"target_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a"
} ,
{
"type" : "relationship" ,
"spec_version" : "2.1" ,
2024-08-07 08:13:15 +00:00
"id" : "relationship--5a115fe2-ce38-40d5-b73b-f5655c696f88" ,
2023-04-21 14:44:17 +00:00
"created" : "2023-04-17T11:35:28.000Z" ,
"modified" : "2023-04-17T11:35:28.000Z" ,
"relationship_type" : "contained-within" ,
"source_ref" : "indicator--ba9983ca-8bd7-410c-a9e9-f96fa47fc920" ,
"target_ref" : "indicator--af58c5b3-e47e-4e9e-b841-c80cfa4cc91a"
} ,
{
"type" : "marking-definition" ,
"spec_version" : "2.1" ,
"id" : "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9" ,
"created" : "2017-01-20T00:00:00.000Z" ,
"definition_type" : "tlp" ,
"name" : "TLP:WHITE" ,
"definition" : {
"tlp" : "white"
}
}
]
}
