General

  • Target

    JaffaCakes118_b7fc34b820ed7dba076002a3184b3e3daf81c373561118247e36d0a526b133ec

  • Size

    271KB

  • Sample

    241222-fr3k2svnfr

  • MD5

    ab58855438cfb9ba9858155da922160f

  • SHA1

    24636dcae28bc4ccfcbe0a000105d864ed93165a

  • SHA256

    b7fc34b820ed7dba076002a3184b3e3daf81c373561118247e36d0a526b133ec

  • SHA512

    beccbedd5849a769b05bd30b24f140fd77bf9b880d3d6d3b0f41bb27607d146b89ecc05f19d2931a3d55a91b822c21f08e8e5591ea6df22bfce527f214c5ce32

  • SSDEEP

    6144:LlCFmeSE23mKALze0gCCyKgBjigjlfst0kUqfVHK:4wE23mKALNvCzgBjtj1sxhf

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      JaffaCakes118_b7fc34b820ed7dba076002a3184b3e3daf81c373561118247e36d0a526b133ec

    • Size

      271KB

    • MD5

      ab58855438cfb9ba9858155da922160f

    • SHA1

      24636dcae28bc4ccfcbe0a000105d864ed93165a

    • SHA256

      b7fc34b820ed7dba076002a3184b3e3daf81c373561118247e36d0a526b133ec

    • SHA512

      beccbedd5849a769b05bd30b24f140fd77bf9b880d3d6d3b0f41bb27607d146b89ecc05f19d2931a3d55a91b822c21f08e8e5591ea6df22bfce527f214c5ce32

    • SSDEEP

      6144:LlCFmeSE23mKALze0gCCyKgBjigjlfst0kUqfVHK:4wE23mKALNvCzgBjtj1sxhf

    • 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