General

  • Target

    ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118

  • Size

    11.2MB

  • Sample

    240421-wsgyqsha5w

  • MD5

    ffdceebfd66c68c128cd5c7e349881b5

  • SHA1

    19e173e67dea7a78b95bce015cf4a58dc2f976c7

  • SHA256

    48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82

  • SHA512

    be958ffd1343a1e1c06ea68a29fa6861c6a1762a74f227190c7d2597a0a64f9926527491b8a11835975d6bf7743359423c9dbf090523d9585c7d1afb623acbd8

  • SSDEEP

    49152:wNbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:w

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      ffdceebfd66c68c128cd5c7e349881b5_JaffaCakes118

    • Size

      11.2MB

    • MD5

      ffdceebfd66c68c128cd5c7e349881b5

    • SHA1

      19e173e67dea7a78b95bce015cf4a58dc2f976c7

    • SHA256

      48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82

    • SHA512

      be958ffd1343a1e1c06ea68a29fa6861c6a1762a74f227190c7d2597a0a64f9926527491b8a11835975d6bf7743359423c9dbf090523d9585c7d1afb623acbd8

    • SSDEEP

      49152:wNbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:w

    • 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