{ "Event": { "analysis": "2", "date": "2017-07-21", "extends_uuid": "", "info": "OSINT - Linux.Bew: un backdoor para el minado de Bitcoin", "publish_timestamp": "1500651908", "published": true, "threat_level_id": "3", "timestamp": "1500651755", "uuid": "59722019-3260-4062-bec5-4eea950d210f", "Orgc": { "name": "CIRCL", "uuid": "55f6ea5e-2c60-40e5-964f-47a8950d210f" }, "Tag": [ { "colour": "#ffffff", "local": "0", "name": "tlp:white", "relationship_type": "" } ], "Attribute": [ { "category": "External analysis", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": false, "type": "link", "uuid": "59722024-b7ec-415d-a9d6-4032950d210f", "value": "https://www.securityartwork.es/2017/07/21/linux-bew-backdoor-minado-bitcoin/", "Tag": [ { "colour": "#00223b", "local": "0", "name": "osint:source-type=\"blog-post\"", "relationship_type": "" } ] }, { "category": "External analysis", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": false, "type": "text", "uuid": "59722036-ecec-4b53-a575-40ce950d210f", "value": "En el siguiente art\u00c3\u00adculo vamos a analizar una muestra del binario catalogado por varias firmas antivirus como Linux.Bew. (Virustotal), malware de tipo ELF del cual hemos detectado actividad durante este \u00c3\u00baltimo mes.", "Tag": [ { "colour": "#00223b", "local": "0", "name": "osint:source-type=\"blog-post\"", "relationship_type": "" } ] }, { "category": "Payload delivery", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "sha256", "uuid": "5972204b-2690-47f3-b113-4dc3950d210f", "value": "80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06" }, { "category": "Artifacts dropped", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "filename", "uuid": "59722068-7e70-418e-b27b-cf65950d210f", "value": "/root/.config/kdeinit4" }, { "category": "Network activity", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "hostname", "uuid": "5972207d-12d4-4674-8603-49fe950d210f", "value": "hfir.u230.org" }, { "category": "Network activity", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "ip-dst", "uuid": "5972207d-b374-4e26-b02b-4100950d210f", "value": "192.211.49.214" }, { "category": "Network activity", "comment": "tcp/443", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "ip-dst", "uuid": "59722091-daf0-4356-ac59-46a7950d210f", "value": "45.58.49.98" }, { "category": "Artifacts dropped", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "yara", "uuid": "597220a8-2828-4a80-8910-4076950d210f", "value": "rule LinuxBew: MALW\r\n{\r\n\tmeta:\r\n\t\tdescription = \"Linux.Bew Backdoor\"\r\n\t\tauthor = \"Joan Soriano / @w0lfvan\"\r\n\t\tdate = \"2017-07-10\"\r\n\t\tversion = \"1.0\"\r\n\t\tMD5 = \"27d857e12b9be5d43f935b8cc86eaabf\"\r\n\t\tSHA256 = \"80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06\"\r\n\tstrings:\r\n\t\t$a = \"src/secp256k1.c\"\r\n\t\t$b = \"hfir.u230.org\"\r\n\t\t$c = \u00e2\u20ac\u0153tempfile-x11session\u00e2\u20ac\u009d\r\n\tcondition:\r\n\t\tall of them\r\n}" }, { "category": "Antivirus detection", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": false, "type": "text", "uuid": "597220ce-d71c-4ec0-b402-41d0950d210f", "value": "Linux.Bew" }, { "category": "Payload delivery", "comment": "- Xchecked via VT: 80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "sha1", "uuid": "597220eb-0b04-447b-9d6a-471002de0b81", "value": "4c614317fd1686f8c865c0a8d367c8e22b94087f" }, { "category": "Payload delivery", "comment": "- Xchecked via VT: 80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": true, "type": "md5", "uuid": "597220eb-f6a0-4b53-8948-400802de0b81", "value": "f42c73e5291392c4c39852670addd7f9" }, { "category": "External analysis", "comment": "- Xchecked via VT: 80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06", "deleted": false, "disable_correlation": false, "timestamp": "1500651755", "to_ids": false, "type": "link", "uuid": "597220eb-8224-4341-9cf0-495d02de0b81", "value": "https://www.virustotal.com/file/80c4d1a1ef433ac44c4fe72e6ca42395261fbca36eff243b07438263a1b1cf06/analysis/1499436533/" } ] } }