General

  • Target

    All function1.0.exe

  • Size

    1.7MB

  • Sample

    241116-nl142awbjr

  • MD5

    aa1ba3c905421e79b13645c9c8c81135

  • SHA1

    da44103f2f45d8818c10fa2269976ea826c57014

  • SHA256

    a5e013b374ebc919d925619516a0191809e385819223d324900da126ccdc0a87

  • SHA512

    9bfa9d7bc0de40f3d0e18d0b35226a1e39abb0fea10ba099a4476ae18a8b4382d096c7bd6eb03f49c3a7b567674b7a4e5eb8d31f66c8010a30e076ba8a263a93

  • SSDEEP

    49152:DBr7VVvutuINQ3jKRq8qwnU5osLDlK8j+0:DN7q2TKRq1wWos3lKm

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:5000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Extracted

Family

xworm

Version

5.0

C2

client-toilet.gl.at.ply.gg:29921

Mutex

NvsfH1XO1syyGREn

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Targets

    • Target

      All function1.0.exe

    • Size

      1.7MB

    • MD5

      aa1ba3c905421e79b13645c9c8c81135

    • SHA1

      da44103f2f45d8818c10fa2269976ea826c57014

    • SHA256

      a5e013b374ebc919d925619516a0191809e385819223d324900da126ccdc0a87

    • SHA512

      9bfa9d7bc0de40f3d0e18d0b35226a1e39abb0fea10ba099a4476ae18a8b4382d096c7bd6eb03f49c3a7b567674b7a4e5eb8d31f66c8010a30e076ba8a263a93

    • SSDEEP

      49152:DBr7VVvutuINQ3jKRq8qwnU5osLDlK8j+0:DN7q2TKRq1wWos3lKm

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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 Enterprise v15

Tasks