General

  • Target

    f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118

  • Size

    12.5MB

  • Sample

    240416-18ntfaff71

  • MD5

    f474b3b24c28e9731d49632cf52cb20a

  • SHA1

    379128e922c6174dd9fe7f16eb1428300860ae00

  • SHA256

    2c2ad8fb26b2481604773c7755cc27156ea9a7c6d19993562bd7f3f0777e3931

  • SHA512

    226e7ab1d0f5894532ab390960ceb10a6c5ffff97bff475fd7282eafdcd65e4e86251893950c58e48a3e2235ca4ea32f77af44ab084956048ae0e2df0d5151a8

  • SSDEEP

    98304:FNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllF:DW

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118

    • Size

      12.5MB

    • MD5

      f474b3b24c28e9731d49632cf52cb20a

    • SHA1

      379128e922c6174dd9fe7f16eb1428300860ae00

    • SHA256

      2c2ad8fb26b2481604773c7755cc27156ea9a7c6d19993562bd7f3f0777e3931

    • SHA512

      226e7ab1d0f5894532ab390960ceb10a6c5ffff97bff475fd7282eafdcd65e4e86251893950c58e48a3e2235ca4ea32f77af44ab084956048ae0e2df0d5151a8

    • SSDEEP

      98304:FNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllF:DW

    • 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