General

  • Target

    f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118

  • Size

    14.5MB

  • Sample

    240415-22l7psaf78

  • MD5

    f22195b83a3c4e02677a69e80c8b66fe

  • SHA1

    22bb4f0bb5e5a74919c826951f6452379b5ab270

  • SHA256

    f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07

  • SHA512

    93e9675c2f83bac2d27bb7df7c02e95208cddf763b020ee4c7655a79eff1b77b2afd7c6d695df66b429c429f03d1154bc6fdf0d0775b8c9144b4d271f8027c41

  • SSDEEP

    6144:X5VCb4QuzF5pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz:J8NKF5p

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      f22195b83a3c4e02677a69e80c8b66fe_JaffaCakes118

    • Size

      14.5MB

    • MD5

      f22195b83a3c4e02677a69e80c8b66fe

    • SHA1

      22bb4f0bb5e5a74919c826951f6452379b5ab270

    • SHA256

      f0d18843cd2adf8eb01fb11839339c7f8ef134ace9f9d5a4f1bf4b6229808a07

    • SHA512

      93e9675c2f83bac2d27bb7df7c02e95208cddf763b020ee4c7655a79eff1b77b2afd7c6d695df66b429c429f03d1154bc6fdf0d0775b8c9144b4d271f8027c41

    • SSDEEP

      6144:X5VCb4QuzF5pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz:J8NKF5p

    • 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