General

  • Target

    f3df43ba132bdf2b35e4cff404cf6822_JaffaCakes118

  • Size

    10.5MB

  • Sample

    240416-t167gsge3w

  • MD5

    f3df43ba132bdf2b35e4cff404cf6822

  • SHA1

    1b9098442468602824c455d02e8a168a5beba1f1

  • SHA256

    a90655570c4a2d65f49238f26f55c26b9d759fb37e320879a4947925d6d39ae1

  • SHA512

    7f9b79450deb76f4f989d06fe521ea4d1bcd7c2fc3d07c97e529b341dc28564db49ba05d99e66a79b6c110d25062c2655618827b02cd9a2de3708bc9728ea9a1

  • SSDEEP

    6144:xTNLKg3DE+aImImImImImImImImImImImImImImImImImImImImImImImImImImY:XeO

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      f3df43ba132bdf2b35e4cff404cf6822_JaffaCakes118

    • Size

      10.5MB

    • MD5

      f3df43ba132bdf2b35e4cff404cf6822

    • SHA1

      1b9098442468602824c455d02e8a168a5beba1f1

    • SHA256

      a90655570c4a2d65f49238f26f55c26b9d759fb37e320879a4947925d6d39ae1

    • SHA512

      7f9b79450deb76f4f989d06fe521ea4d1bcd7c2fc3d07c97e529b341dc28564db49ba05d99e66a79b6c110d25062c2655618827b02cd9a2de3708bc9728ea9a1

    • SSDEEP

      6144:xTNLKg3DE+aImImImImImImImImImImImImImImImImImImImImImImImImImImY:XeO

    • 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