{ "Event": { "analysis": "2", "date": "2017-03-30", "extends_uuid": "", "info": "OSINT - Websites compromised in \u00e2\u20ac\u02dcDecimal IP\u00e2\u20ac\u2122 campaign", "publish_timestamp": "1490880415", "published": true, "threat_level_id": "3", "timestamp": "1490880407", "uuid": "58dcbfd0-91a4-4bc6-9aa9-4af7950d210f", "Orgc": { "name": "CIRCL", "uuid": "55f6ea5e-2c60-40e5-964f-47a8950d210f" }, "Tag": [ { "colour": "#ffffff", "local": false, "name": "tlp:white", "relationship_type": "" }, { "colour": "#00223b", "local": false, "name": "osint:source-type=\"blog-post\"", "relationship_type": "" }, { "colour": "#0088cc", "local": false, "name": "misp-galaxy:exploit-kit=\"RIG\"", "relationship_type": "" } ], "Attribute": [ { "category": "External analysis", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1490876884", "to_ids": false, "type": "text", "uuid": "58dcbff0-5240-43b0-8d17-46fa950d210f", "value": "When looking at malicious traffic, one of the things we are interested in are the hosts involved in a particular attack. For example, we check the hostnames or IP addresses that were serving up malicious code.\r\n\r\nBefore getting further, let\u00e2\u20ac\u2122s define a few concepts to better understand the topic we are discussing today. A host name can be:\r\n\r\nA domain name (i.e. http://example.com/)\r\nA fully qualified domain name (i.e. http://test.example.com/)\r\nAn IP address (i.e. http://127.0.0.1/)\r\nIt\u00e2\u20ac\u2122s not as usual, but IP addresses can indeed be directly used as the URL and when that happens it is called an IP-Literal Hostname (see Eric Lawrence\u00e2\u20ac\u2122s post on this subject).\r\n\r\nIP addresses (IPv4) follow the dot-decimal notation which is four numbers, each ranging from 0 to 255, separated by dots. But then, to make things a little more complicated, we have exceptions, such as the non-dotted IP literals, in decimal (http://2130706433/) or octal form (http://017700000001/).\r\n\r\nThis takes us to a recent infection chain for the RIG exploit kit where we came across such an occurrence.", "Tag": [ { "colour": "#ffffff", "local": false, "name": "tlp:white", "relationship_type": "" }, { "colour": "#00223b", "local": false, "name": "osint:source-type=\"blog-post\"", "relationship_type": "" }, { "colour": "#075200", "local": false, "name": "admiralty-scale:source-reliability=\"b\"", "relationship_type": "" } ] }, { "category": "External analysis", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1490876877", "to_ids": false, "type": "link", "uuid": "58dcc001-5268-4445-a538-457e950d210f", "value": "https://blog.malwarebytes.com/cybercrime/2017/03/websites-compromised-decimal-ip-campaign/", "Tag": [ { "colour": "#ffffff", "local": false, "name": "tlp:white", "relationship_type": "" }, { "colour": "#00223b", "local": false, "name": "osint:source-type=\"blog-post\"", "relationship_type": "" }, { "colour": "#075200", "local": false, "name": "admiralty-scale:source-reliability=\"b\"", "relationship_type": "" } ] }, { "category": "Payload delivery", "comment": "Payload (Smoke Loader)", "deleted": false, "disable_correlation": false, "timestamp": "1490876833", "to_ids": true, "type": "sha256", "uuid": "58dcc07e-6c44-439a-8887-4de8950d210f", "value": "4bed780a55e6179e4a1236444c34398af50d3bea39f86eb877089265f833bda5" }, { "category": "Network activity", "comment": "Malicious redirect", "deleted": false, "disable_correlation": false, "timestamp": "1490876833", "to_ids": true, "type": "ip-dst", "uuid": "58dcc093-2e94-4149-aa7f-468d950d210f", "value": "104.238.158.235" }, { "category": "Payload delivery", "comment": "Payload (Smoke Loader) - Xchecked via VT: 4bed780a55e6179e4a1236444c34398af50d3bea39f86eb877089265f833bda5", "deleted": false, "disable_correlation": false, "timestamp": "1490876837", "to_ids": true, "type": "sha1", "uuid": "58dcf9a5-e148-42e4-a093-4b8202de0b81", "value": "190cef3dc30d0317955b60e88bb31b924f440882" }, { "category": "Payload delivery", "comment": "Payload (Smoke Loader) - Xchecked via VT: 4bed780a55e6179e4a1236444c34398af50d3bea39f86eb877089265f833bda5", "deleted": false, "disable_correlation": false, "timestamp": "1490876838", "to_ids": true, "type": "md5", "uuid": "58dcf9a6-cbf4-44f0-b647-463802de0b81", "value": "6da59c5e5a3c4e05f0fdfaa618656a83" }, { "category": "External analysis", "comment": "Payload (Smoke Loader) - Xchecked via VT: 4bed780a55e6179e4a1236444c34398af50d3bea39f86eb877089265f833bda5", "deleted": false, "disable_correlation": false, "timestamp": "1490876839", "to_ids": false, "type": "link", "uuid": "58dcf9a7-5388-4918-abe0-414502de0b81", "value": "https://www.virustotal.com/file/4bed780a55e6179e4a1236444c34398af50d3bea39f86eb877089265f833bda5/analysis/1490743909/" } ] } }