General

  • Target

    Setup.exe

  • Size

    4.6MB

  • Sample

    220505-bmvx7ahfam

  • MD5

    62ed80f638e9551e1e59b4ea9341bccd

  • SHA1

    44196e8cb0f5774decf60e12215767f092c3c008

  • SHA256

    c1143945d2559da08d0fe82b3eb88e1e7238c752b05f3b8c7970e6bd3f6c97bf

  • SHA512

    56ba1326b1d691838a77ba3e353b17421d5602d378a73e213b7bc045d3befd304ef5a1170df5ba30ef237df9ef2b18283d19fdf23c025291763c8751ae838cad

Malware Config

Targets

    • Target

      Setup.exe

    • Size

      4.6MB

    • MD5

      62ed80f638e9551e1e59b4ea9341bccd

    • SHA1

      44196e8cb0f5774decf60e12215767f092c3c008

    • SHA256

      c1143945d2559da08d0fe82b3eb88e1e7238c752b05f3b8c7970e6bd3f6c97bf

    • SHA512

      56ba1326b1d691838a77ba3e353b17421d5602d378a73e213b7bc045d3befd304ef5a1170df5ba30ef237df9ef2b18283d19fdf23c025291763c8751ae838cad

    • Modifies security service

    • Executes dropped EXE

    • Possible privilege escalation attempt

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Modifies file permissions

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Impact

Service Stop

1
T1489

Tasks