General

  • Target

    c.bat

  • Size

    228KB

  • Sample

    241111-xrs52ssrhv

  • MD5

    a3b38f1fb45a0d979bb36e9b75d2f87d

  • SHA1

    39bbb23feb2ca23f3c4086b60e87a9bdc8dd061a

  • SHA256

    d6700b00f076df721138d454547343a20467a731a76f0f8602f676cb9485bec5

  • SHA512

    4ec8b722e1f12e3c29cde328bf4d4e399410c44097379944b0e5f2aca48ed59973cdfe53664da1de5201fbf630660550fb44f7832ab3e19f93717d366cdd4e99

  • SSDEEP

    3072:Q4nDlXCJFOY9/dyPKgMGfGiPovhfpla1R1EYkOipIUqntjj9YjMybguqJb5HIPv9:1Wb9IPjuplaP1Vgr0nSYJmBN5

Malware Config

Extracted

Family

xworm

Version

5.0

C2

103.176.110.245:25902

Mutex

fLbMEIr5ebe4KDdj

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target

      c.bat

    • Size

      228KB

    • MD5

      a3b38f1fb45a0d979bb36e9b75d2f87d

    • SHA1

      39bbb23feb2ca23f3c4086b60e87a9bdc8dd061a

    • SHA256

      d6700b00f076df721138d454547343a20467a731a76f0f8602f676cb9485bec5

    • SHA512

      4ec8b722e1f12e3c29cde328bf4d4e399410c44097379944b0e5f2aca48ed59973cdfe53664da1de5201fbf630660550fb44f7832ab3e19f93717d366cdd4e99

    • SSDEEP

      3072:Q4nDlXCJFOY9/dyPKgMGfGiPovhfpla1R1EYkOipIUqntjj9YjMybguqJb5HIPv9:1Wb9IPjuplaP1Vgr0nSYJmBN5

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Blocklisted process makes network request

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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