General

  • Target

    e0f97ed6e648c36da3679f4d7a3491ec

  • Size

    13.3MB

  • Sample

    240327-g376caed88

  • MD5

    e0f97ed6e648c36da3679f4d7a3491ec

  • SHA1

    e506bcefa0583fcb1e3d47db07557c3b0645fd89

  • SHA256

    fffbb45151fe91ae3e85d1df39e46cd8130479779dee645e9365049356f15e95

  • SHA512

    095330021e3c90c47a9ce3dd8642bc046fafeb6247bb60ade6af7fe57d27a5c5e1505a5e4516f21226d7d98c90c28b91bc5cc3c5a90f18200a2085c1276655bf

  • SSDEEP

    98304:311111111111111111111111111111111111111111111111111111111111111/:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      e0f97ed6e648c36da3679f4d7a3491ec

    • Size

      13.3MB

    • MD5

      e0f97ed6e648c36da3679f4d7a3491ec

    • SHA1

      e506bcefa0583fcb1e3d47db07557c3b0645fd89

    • SHA256

      fffbb45151fe91ae3e85d1df39e46cd8130479779dee645e9365049356f15e95

    • SHA512

      095330021e3c90c47a9ce3dd8642bc046fafeb6247bb60ade6af7fe57d27a5c5e1505a5e4516f21226d7d98c90c28b91bc5cc3c5a90f18200a2085c1276655bf

    • SSDEEP

      98304:311111111111111111111111111111111111111111111111111111111111111/:

    • Tofsee

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

    • Windows security bypass

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks