General

  • Target

    VisualC++.dll

  • Size

    38KB

  • Sample

    240609-r89apscd53

  • MD5

    ccf5611055e2534d41517afa19af6831

  • SHA1

    29c3f3457922d209434678289a2e574c9975a4b9

  • SHA256

    afe8adbd892f2c77a1cb9f8dc096ddbced00d80a96c427c384d6e3377ee7ac79

  • SHA512

    7cdef22ba8f9447b86c9f4026ff33f39ec837efe7f66a0f88b10e3615535f3b392858e3152560ac12c9bcec3c401da0b064005828538b602e2c59c05c748ec87

  • SSDEEP

    768:yypWCI+GtIgSimoTsn/SXFyw9BHIFG6rO/h3PyYnlt:yypWQGtIgHu/EFr91IFG6rO/lZlt

Malware Config

Extracted

Family

xworm

Version

5.0

C2

addition-proxy.gl.at.ply.gg:2272

Mutex

alPkNQSy79I7nWvh

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    svchost.exe

aes.plain

Targets

    • Target

      VisualC++.dll

    • Size

      38KB

    • MD5

      ccf5611055e2534d41517afa19af6831

    • SHA1

      29c3f3457922d209434678289a2e574c9975a4b9

    • SHA256

      afe8adbd892f2c77a1cb9f8dc096ddbced00d80a96c427c384d6e3377ee7ac79

    • SHA512

      7cdef22ba8f9447b86c9f4026ff33f39ec837efe7f66a0f88b10e3615535f3b392858e3152560ac12c9bcec3c401da0b064005828538b602e2c59c05c748ec87

    • SSDEEP

      768:yypWCI+GtIgSimoTsn/SXFyw9BHIFG6rO/h3PyYnlt:yypWQGtIgHu/EFr91IFG6rO/lZlt

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Looks up external IP address via web service

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

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Tasks