General

  • Target

    174926665eeacc8ca38196b53f1cb5bb_JaffaCakes118

  • Size

    142KB

  • Sample

    240505-mne4xafd9s

  • MD5

    174926665eeacc8ca38196b53f1cb5bb

  • SHA1

    c7c0728973c935bdd74a4819f600bab970a0a51c

  • SHA256

    980694e35dbab6bfc383714316873fb3e9288df0df617404b4f83c8b6bdb79c8

  • SHA512

    3afe95fdc6ddbe6f0bb85643df28f70d4a972e7362eb56baa7d835b08a4f9fcaf2028b84efd11975c257d1cc15c3eaee4ce7ddd2f120fbf96560f9faba9b336b

  • SSDEEP

    3072:9X3VXWiUmL3QMSSoJvnra4BcwfMq/eTW8qz8x:iKboJDDBcwt/vQ

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      174926665eeacc8ca38196b53f1cb5bb_JaffaCakes118

    • Size

      142KB

    • MD5

      174926665eeacc8ca38196b53f1cb5bb

    • SHA1

      c7c0728973c935bdd74a4819f600bab970a0a51c

    • SHA256

      980694e35dbab6bfc383714316873fb3e9288df0df617404b4f83c8b6bdb79c8

    • SHA512

      3afe95fdc6ddbe6f0bb85643df28f70d4a972e7362eb56baa7d835b08a4f9fcaf2028b84efd11975c257d1cc15c3eaee4ce7ddd2f120fbf96560f9faba9b336b

    • SSDEEP

      3072:9X3VXWiUmL3QMSSoJvnra4BcwfMq/eTW8qz8x:iKboJDDBcwt/vQ

    • 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

Execution

System Services

1
T1569

Service Execution

1
T1569.002

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