{ "type": "bundle", "id": "bundle--5b17eaaf-783c-4624-b5f4-42d5950d210f", "objects": [ { "type": "identity", "spec_version": "2.1", "id": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-13T12:09:12.000Z", "modified": "2018-06-13T12:09:12.000Z", "name": "CIRCL", "identity_class": "organization" }, { "type": "report", "spec_version": "2.1", "id": "report--5b17eaaf-783c-4624-b5f4-42d5950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-13T12:09:12.000Z", "modified": "2018-06-13T12:09:12.000Z", "name": "OSINT - Sigrun Ransomware Author Decrypting Russian Victims for Free", "published": "2018-06-13T15:39:44Z", "object_refs": [ "observed-data--5b17ed4b-d91c-42b3-b3f5-4998950d210f", "url--5b17ed4b-d91c-42b3-b3f5-4998950d210f", "x-misp-attribute--5b17ed5f-5934-4b17-918d-4149950d210f", "indicator--5b18e06d-07dc-4b4e-870e-262b950d210f", "indicator--5b18e06e-0884-4617-8b91-262b950d210f", "indicator--5b18e0b6-1ccc-41f1-b246-1dc5950d210f", "indicator--5b18df00-e54c-4f8c-8aff-1dc7950d210f", "x-misp-object--09bc113b-4699-4395-b2c8-f7e57415bab4", "x-misp-object--7aeb92ee-c416-4eea-bd3d-bffb83f3b67c", "relationship--b5e37887-74c6-4487-9cdb-e244dc7882d6" ], "labels": [ "Threat-Report", "misp:tool=\"MISP-STIX-Converter\"", "malware_classification:malware-category=\"Ransomware\"", "osint:source-type=\"blog-post\"", "misp-galaxy:ransomware=\"Sigrun Ransomware\"" ], "object_marking_refs": [ "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9" ] }, { "type": "observed-data", "spec_version": "2.1", "id": "observed-data--5b17ed4b-d91c-42b3-b3f5-4998950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-06T14:21:09.000Z", "modified": "2018-06-06T14:21:09.000Z", "first_observed": "2018-06-06T14:21:09Z", "last_observed": "2018-06-06T14:21:09Z", "number_observed": 1, "object_refs": [ "url--5b17ed4b-d91c-42b3-b3f5-4998950d210f" ], "labels": [ "misp:type=\"link\"", "misp:category=\"External analysis\"", "osint:source-type=\"blog-post\"" ] }, { "type": "url", "spec_version": "2.1", "id": "url--5b17ed4b-d91c-42b3-b3f5-4998950d210f", "value": "https://www.bleepingcomputer.com/news/security/sigrun-ransomware-author-decrypting-russian-victims-for-free/" }, { "type": "x-misp-attribute", "spec_version": "2.1", "id": "x-misp-attribute--5b17ed5f-5934-4b17-918d-4149950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-06T14:21:02.000Z", "modified": "2018-06-06T14:21:02.000Z", "labels": [ "misp:type=\"text\"", "misp:category=\"External analysis\"", "osint:source-type=\"blog-post\"" ], "x_misp_category": "External analysis", "x_misp_type": "text", "x_misp_value": "The author of the Sigrun Ransomware is providing decryption for Russian victims for free, while asking for a ransom payment of $2,500 in Bitcoin or Dash for everyone else. It is not uncommon for Russian ransomware developers to purposely avoid targeting Russian citizens and to outwardly help such victims for free." }, { "type": "indicator", "spec_version": "2.1", "id": "indicator--5b18e06d-07dc-4b4e-870e-262b950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-07T07:36:13.000Z", "modified": "2018-06-07T07:36:13.000Z", "pattern": "[file:name = 'RESTORE-SIGRUN.txt']", "pattern_type": "stix", "pattern_version": "2.1", "valid_from": "2018-06-07T07:36:13Z", "kill_chain_phases": [ { "kill_chain_name": "misp-category", "phase_name": "Payload delivery" } ], "labels": [ "misp:type=\"filename\"", "misp:category=\"Payload delivery\"", "misp:to_ids=\"True\"" ] }, { "type": "indicator", "spec_version": "2.1", "id": "indicator--5b18e06e-0884-4617-8b91-262b950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-07T07:36:14.000Z", "modified": "2018-06-07T07:36:14.000Z", "pattern": "[file:name = 'RESTORE-SIGRUN.html']", "pattern_type": "stix", "pattern_version": "2.1", "valid_from": "2018-06-07T07:36:14Z", "kill_chain_phases": [ { "kill_chain_name": "misp-category", "phase_name": "Payload delivery" } ], "labels": [ "misp:type=\"filename\"", "misp:category=\"Payload delivery\"", "misp:to_ids=\"True\"" ] }, { "type": "indicator", "spec_version": "2.1", "id": "indicator--5b18e0b6-1ccc-41f1-b246-1dc5950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-07T07:37:26.000Z", "modified": "2018-06-07T07:37:26.000Z", "pattern": "[email-message:from_ref.value = 'sigrun_decryptor@protonmail.ch']", "pattern_type": "stix", "pattern_version": "2.1", "valid_from": "2018-06-07T07:37:26Z", "kill_chain_phases": [ { "kill_chain_name": "misp-category", "phase_name": "Payload delivery" } ], "labels": [ "misp:type=\"email-src\"", "misp:category=\"Payload delivery\"", "misp:to_ids=\"True\"" ] }, { "type": "indicator", "spec_version": "2.1", "id": "indicator--5b18df00-e54c-4f8c-8aff-1dc7950d210f", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-07T07:30:08.000Z", "modified": "2018-06-07T07:30:08.000Z", "pattern": "[file:hashes.SHA256 = '664b482e22e0f108660cf03fb7d1507d929e8242eb6c5762e577096a50a8cc5b' AND file:x_misp_state = 'Malicious']", "pattern_type": "stix", "pattern_version": "2.1", "valid_from": "2018-06-07T07:30:08Z", "kill_chain_phases": [ { "kill_chain_name": "misp-category", "phase_name": "file" } ], "labels": [ "misp:name=\"file\"", "misp:meta-category=\"file\"", "misp:to_ids=\"True\"" ] }, { "type": "x-misp-object", "spec_version": "2.1", "id": "x-misp-object--09bc113b-4699-4395-b2c8-f7e57415bab4", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-13T07:38:07.000Z", "modified": "2018-06-13T07:38:07.000Z", "labels": [ "misp:name=\"file\"", "misp:meta-category=\"file\"" ], "x_misp_meta_category": "file", "x_misp_name": "file" }, { "type": "x-misp-object", "spec_version": "2.1", "id": "x-misp-object--7aeb92ee-c416-4eea-bd3d-bffb83f3b67c", "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f", "created": "2018-06-13T07:38:06.000Z", "modified": "2018-06-13T07:38:06.000Z", "labels": [ "misp:name=\"virustotal-report\"", "misp:meta-category=\"misc\"" ], "x_misp_meta_category": "misc", "x_misp_name": "virustotal-report" }, { "type": "relationship", "spec_version": "2.1", "id": "relationship--b5e37887-74c6-4487-9cdb-e244dc7882d6", "created": "2018-06-13T07:38:07.000Z", "modified": "2018-06-13T07:38:07.000Z", "relationship_type": "analysed-with", "source_ref": "x-misp-object--09bc113b-4699-4395-b2c8-f7e57415bab4", "target_ref": "x-misp-object--7aeb92ee-c416-4eea-bd3d-bffb83f3b67c" }, { "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" } } ] }