General

  • Target

    3d209bd2241f74c0e58bfb19836fdeeb54ff226c2d781f91fe677b3599cbc806

  • Size

    259KB

  • Sample

    221028-pn5qnsgadp

  • MD5

    abe419dadc519b178787ade78bfd8764

  • SHA1

    a6b0246ace402f82f583a734f6f34b451ecb1b22

  • SHA256

    3d209bd2241f74c0e58bfb19836fdeeb54ff226c2d781f91fe677b3599cbc806

  • SHA512

    fde3cd4d7abf63d43f4e79bd86b5dcb11c70a20b0300088c9b646173fe72cf850d6dcbda231f02dab73668cf4c00c1a70a4e0efb3a0857537a48ebd692a3a10e

  • SSDEEP

    6144:trUHYLfxvwqMcOgrN2Omdn9VyXPJbv7O/e:trUHYFvJ8gSdn9w8/e

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      3d209bd2241f74c0e58bfb19836fdeeb54ff226c2d781f91fe677b3599cbc806

    • Size

      259KB

    • MD5

      abe419dadc519b178787ade78bfd8764

    • SHA1

      a6b0246ace402f82f583a734f6f34b451ecb1b22

    • SHA256

      3d209bd2241f74c0e58bfb19836fdeeb54ff226c2d781f91fe677b3599cbc806

    • SHA512

      fde3cd4d7abf63d43f4e79bd86b5dcb11c70a20b0300088c9b646173fe72cf850d6dcbda231f02dab73668cf4c00c1a70a4e0efb3a0857537a48ebd692a3a10e

    • SSDEEP

      6144:trUHYLfxvwqMcOgrN2Omdn9VyXPJbv7O/e:trUHYFvJ8gSdn9w8/e

    • Tofsee

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

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks