General

  • Target

    JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df

  • Size

    315KB

  • Sample

    241225-akf6ks1rem

  • MD5

    e0b4e6f9450122319cc01978d3639e83

  • SHA1

    aba9a8fca5e86afbde8215f2ae2c51fae913c149

  • SHA256

    4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df

  • SHA512

    c8064816a580626a74cd12da0028d8b9c7640a2bebe53d2995fbe75f3b49dc7ddf1599d4f049cadae0596ed0a044ab96735db397b1deddb861b48e0ad2bc4355

  • SSDEEP

    3072:zchCKOmpAL2s8t5dKQY4dJh1tGbLl0k284e2BxWH8IL+ntGCMjjjjjjjjo:IkIAL2s8924DtG90k2DLDA8ltGCM

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df

    • Size

      315KB

    • MD5

      e0b4e6f9450122319cc01978d3639e83

    • SHA1

      aba9a8fca5e86afbde8215f2ae2c51fae913c149

    • SHA256

      4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df

    • SHA512

      c8064816a580626a74cd12da0028d8b9c7640a2bebe53d2995fbe75f3b49dc7ddf1599d4f049cadae0596ed0a044ab96735db397b1deddb861b48e0ad2bc4355

    • SSDEEP

      3072:zchCKOmpAL2s8t5dKQY4dJh1tGbLl0k284e2BxWH8IL+ntGCMjjjjjjjjo:IkIAL2s8924DtG90k2DLDA8ltGCM

    • 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