General

  • Target

    f570f71d8285dce6ba5ac8ead17b0435_JaffaCakes118

  • Size

    10.4MB

  • Sample

    240417-k4zr5scb8w

  • MD5

    f570f71d8285dce6ba5ac8ead17b0435

  • SHA1

    ab4efe5cba052b2ba724222540043c90d9d6980c

  • SHA256

    62b95f3ef9cdf1e9c528d859c4d4116e114cf90b9711e1bc486ab4d034bd574e

  • SHA512

    56034472678e5d6610f1cb9b59f4b3a60c96b281b3fceb529742cdf51ec213c08e16a6b8e1748a06d461ff3d69bf7defdcac8cad10968c64d3c10135093de62f

  • SSDEEP

    6144:fpcqzKUTS5Yde/qyQK8ZtqTMIKC/eUPFwUnyaAjLo7pU6eD:PKUO54e/q60tmT7/xPFwVjs7G6

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      f570f71d8285dce6ba5ac8ead17b0435_JaffaCakes118

    • Size

      10.4MB

    • MD5

      f570f71d8285dce6ba5ac8ead17b0435

    • SHA1

      ab4efe5cba052b2ba724222540043c90d9d6980c

    • SHA256

      62b95f3ef9cdf1e9c528d859c4d4116e114cf90b9711e1bc486ab4d034bd574e

    • SHA512

      56034472678e5d6610f1cb9b59f4b3a60c96b281b3fceb529742cdf51ec213c08e16a6b8e1748a06d461ff3d69bf7defdcac8cad10968c64d3c10135093de62f

    • SSDEEP

      6144:fpcqzKUTS5Yde/qyQK8ZtqTMIKC/eUPFwUnyaAjLo7pU6eD:PKUO54e/q60tmT7/xPFwVjs7G6

    • 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