General

  • Target

    befeb13d03669a0f610ba500df017d7b1c2155d86cc7e985feb439a867851fe0

  • Size

    141KB

  • Sample

    240830-3smybatdnm

  • MD5

    d7ddc1532cb71975cab306673d44ac55

  • SHA1

    f7c069045f9058817566f86477ab7fc733f1998b

  • SHA256

    befeb13d03669a0f610ba500df017d7b1c2155d86cc7e985feb439a867851fe0

  • SHA512

    ba125edc6b8a8f9a0098252b788a64b328ce25aad5e5cd470604dc72926b74cac2c13e909411498250ec83b4ac4f988606e5ffab0f5b4b2b79225a971cbcdef0

  • SSDEEP

    3072:4XyZCJ7cO4Ft68Nf9hdUAilUGVJN2jd+PQZ3jmrM3lCAAvEX:yygJ7cO2U8lzdYfYSsv3lRA8X

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411

    • Size

      14.3MB

    • MD5

      2d357e20218ecce7a188d34e2163ac1c

    • SHA1

      1a5bf816db5c146b3b685fdb28c3761608fdfef4

    • SHA256

      ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411

    • SHA512

      59d6d72c15003acd59936ad400a1d1d465c1d109e9c7360f14603c709679e1fddabfae87252fbb0829fad05fa668deca594715d4775bb2fa9b04af776a7fb182

    • SSDEEP

      6144:uM0Em6Qk5N3Sccccccccccccccccccccccccccccccccccccccccccccccccccc8:oEma

    • 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