General

  • Target

    ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118

  • Size

    12.7MB

  • Sample

    240421-tt1q5aeh85

  • MD5

    ffb0772aa20b058225e62bd6036b72d6

  • SHA1

    fc0a2feb39f678670ebfeed703d768f334a5865c

  • SHA256

    cec80312cba875be63e11a1b05c73baa7baf1328c929749c8bea4dccf64c2259

  • SHA512

    d32e0e75b3dde06bfe237cce0125b42fec82a4fc24a310052cf5dbec69e80853a7a2e4d1e29934ba6bfa17a62a884630d5cdb3661f5307f6058062ae4495b302

  • SSDEEP

    24576:FjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBj:Fnh

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      ffb0772aa20b058225e62bd6036b72d6_JaffaCakes118

    • Size

      12.7MB

    • MD5

      ffb0772aa20b058225e62bd6036b72d6

    • SHA1

      fc0a2feb39f678670ebfeed703d768f334a5865c

    • SHA256

      cec80312cba875be63e11a1b05c73baa7baf1328c929749c8bea4dccf64c2259

    • SHA512

      d32e0e75b3dde06bfe237cce0125b42fec82a4fc24a310052cf5dbec69e80853a7a2e4d1e29934ba6bfa17a62a884630d5cdb3661f5307f6058062ae4495b302

    • SSDEEP

      24576:FjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBj:Fnh

    • 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 Matrix ATT&CK v13

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks