General

  • Target

    81de39e7c4edad66037f5b8e4965542d7aa4b2318459735f6ec490a1637fda0b.exe

  • Size

    13.7MB

  • Sample

    241123-p4x1rs1pbq

  • MD5

    5f46e1a9a454e6f44e49c0c81ee26a79

  • SHA1

    7cb18cae342b9e49b6aa12af1ab1d6d953f6f315

  • SHA256

    81de39e7c4edad66037f5b8e4965542d7aa4b2318459735f6ec490a1637fda0b

  • SHA512

    f4777321413ad062eba356fb73c2ffc1e01121e2c8d0bd5a7a3d2f2dc6fd36b7405e19d65275fe637e7a0dc8568e7196e26f19ae4913377400ef9c132b5dbae6

  • SSDEEP

    49152:H77777777777777777777777777777777777777777777777777777777777777U:E

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Targets

    • Target

      81de39e7c4edad66037f5b8e4965542d7aa4b2318459735f6ec490a1637fda0b.exe

    • Size

      13.7MB

    • MD5

      5f46e1a9a454e6f44e49c0c81ee26a79

    • SHA1

      7cb18cae342b9e49b6aa12af1ab1d6d953f6f315

    • SHA256

      81de39e7c4edad66037f5b8e4965542d7aa4b2318459735f6ec490a1637fda0b

    • SHA512

      f4777321413ad062eba356fb73c2ffc1e01121e2c8d0bd5a7a3d2f2dc6fd36b7405e19d65275fe637e7a0dc8568e7196e26f19ae4913377400ef9c132b5dbae6

    • SSDEEP

      49152:H77777777777777777777777777777777777777777777777777777777777777U:E

    • Tofsee

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

    • Tofsee family

    • 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