General

  • Target
    MT 103 USD 65660.01.js
  • Size 101KB
  • Sample261022-e19kaax1dw
  • SHA256 2bff9eeb072e4d37e129e9d37eb7c866051be1ace3d8702fc7ddac0953ea8dcd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://rough-truth-e072.publicftpresend.workers.dev/pfeeitvv

  • exe.dropper

    https://rough-truth-e072.publicftpresend.workers.dev/pfeeitvv

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 147.124.216.205:5151

Mutex
  • uW1YQSdZK8XVNNoZ

Attributes
  • Install_directory

    %AppData%

  • install_file

    XWormClient.exe

aes.plain

Targets

    • Target
      MT 103 USD 65660.01.js
    • Size 101KB
    • SHA256 2bff9eeb072e4d37e129e9d37eb7c866051be1ace3d8702fc7ddac0953ea8dcd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • System Binary Proxy Execution: Regsvcs/Regasm

      Abuse Regasm to proxy execution of malicious code.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks