General

  • Target

    JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2

  • Size

    242KB

  • Sample

    241230-g45fva1jgx

  • MD5

    a0bf195fa7579fdfbc39dd8bcba6a5dd

  • SHA1

    d4cf4ec6326a38c0750f9324f18473383c61f383

  • SHA256

    8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2

  • SHA512

    5335564141fd678defbb34f71cddefbc2a50cce648095de7b211590c64e42ac20339113449b1ebe3f97ee7c26d5ca388feb153c55290278735c0c4b38bac3e48

  • SSDEEP

    6144:5GZQ1thzjRY1VPr6ux7UkPf+52qDLgx9gfaY:0ZYzjRYbP2ZkPG4OLgx9

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2

    • Size

      242KB

    • MD5

      a0bf195fa7579fdfbc39dd8bcba6a5dd

    • SHA1

      d4cf4ec6326a38c0750f9324f18473383c61f383

    • SHA256

      8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2

    • SHA512

      5335564141fd678defbb34f71cddefbc2a50cce648095de7b211590c64e42ac20339113449b1ebe3f97ee7c26d5ca388feb153c55290278735c0c4b38bac3e48

    • SSDEEP

      6144:5GZQ1thzjRY1VPr6ux7UkPf+52qDLgx9gfaY:0ZYzjRYbP2ZkPG4OLgx9

    • 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