General

  • Target

    3726486a6f24576956c0d2d860f4b415bde97b4a89e1d92dcdaa06c14dbcda33

  • Size

    284KB

  • Sample

    211127-a3m2vafhbj

  • MD5

    511f03c1999f1acbea500c3a0a583fbb

  • SHA1

    57ff7a44d371a5a626b3af274a00db14aef544d2

  • SHA256

    3726486a6f24576956c0d2d860f4b415bde97b4a89e1d92dcdaa06c14dbcda33

  • SHA512

    8a2e43b6f9b1198723a1d2ec228f62323e9fdcefda8f3db8f3ba36be3c2452e01971debcbee1aa82060cbe39759bd1de75672819cf298df1edbee2e3219aacbd

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Targets

    • Target

      3726486a6f24576956c0d2d860f4b415bde97b4a89e1d92dcdaa06c14dbcda33

    • Size

      284KB

    • MD5

      511f03c1999f1acbea500c3a0a583fbb

    • SHA1

      57ff7a44d371a5a626b3af274a00db14aef544d2

    • SHA256

      3726486a6f24576956c0d2d860f4b415bde97b4a89e1d92dcdaa06c14dbcda33

    • SHA512

      8a2e43b6f9b1198723a1d2ec228f62323e9fdcefda8f3db8f3ba36be3c2452e01971debcbee1aa82060cbe39759bd1de75672819cf298df1edbee2e3219aacbd

    • Tofsee

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

    • Windows security bypass

    • 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