General

  • Target

    80861d706dfddca16e7b919acc16304bc5ff3d239be1f36fe3c0d07323a38001

  • Size

    153KB

  • Sample

    210926-yxs8nsfcan

  • MD5

    e5f2853120da2cbc825d9f939cbff419

  • SHA1

    e8e9d04efeda444fd3c07ef60658969a6bfc14e7

  • SHA256

    80861d706dfddca16e7b919acc16304bc5ff3d239be1f36fe3c0d07323a38001

  • SHA512

    2204dc1bfa972c69b2517d0f8f300158650c44ae69ac53f2519450aeb80327ffe6958fcf948f6f3d3c8620ccf3912818a44ff3c4b5dca45a7849bf46626b493c

Malware Config

Targets

    • Target

      80861d706dfddca16e7b919acc16304bc5ff3d239be1f36fe3c0d07323a38001

    • Size

      153KB

    • MD5

      e5f2853120da2cbc825d9f939cbff419

    • SHA1

      e8e9d04efeda444fd3c07ef60658969a6bfc14e7

    • SHA256

      80861d706dfddca16e7b919acc16304bc5ff3d239be1f36fe3c0d07323a38001

    • SHA512

      2204dc1bfa972c69b2517d0f8f300158650c44ae69ac53f2519450aeb80327ffe6958fcf948f6f3d3c8620ccf3912818a44ff3c4b5dca45a7849bf46626b493c

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

      suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner Payload

    • Creates new service(s)

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Tasks