General

  • Target

    EzFN-Manager.exe

  • Size

    11.3MB

  • Sample

    241128-xt5xmaxjdx

  • MD5

    72129e47177ee1b7e454eecf9bff4dff

  • SHA1

    67089411d7483d5e12c07610602d1c1299528c5a

  • SHA256

    a45af606076ebaaff640b37f37dd7c012d397ae5ebacc2d721a9a78cc8d9e672

  • SHA512

    cef9d9a35d9a444f2723a5fd367c546241fea85a5a130890136e5ddcb849af41b031498c108ea8d107f1a91ae66693fd1e6fe543f2bd3196770bfdcbec65eb5b

  • SSDEEP

    196608:ywrwlypu8PZ3PpxRY5aJcEf86CK8Md/f5vjO0xbCEZ7LL80MaJsR+h:ywGuua3YaKC8XWX5qQuE7v8CJG

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1311730654383308871/KQQ25doAFWBI4NnsNaKchjBjJDpIiowg2SpkEtAoRCExPatjlopyWE8UP0ZjYw0ADS6x

Extracted

Family

xworm

Version

5.0

C2

John235-52825.portmap.host:52825

Mutex

TTMtKmQoNFIN9kYg

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    WinRar.exe

aes.plain

Targets

    • Target

      EzFN-Manager.exe

    • Size

      11.3MB

    • MD5

      72129e47177ee1b7e454eecf9bff4dff

    • SHA1

      67089411d7483d5e12c07610602d1c1299528c5a

    • SHA256

      a45af606076ebaaff640b37f37dd7c012d397ae5ebacc2d721a9a78cc8d9e672

    • SHA512

      cef9d9a35d9a444f2723a5fd367c546241fea85a5a130890136e5ddcb849af41b031498c108ea8d107f1a91ae66693fd1e6fe543f2bd3196770bfdcbec65eb5b

    • SSDEEP

      196608:ywrwlypu8PZ3PpxRY5aJcEf86CK8Md/f5vjO0xbCEZ7LL80MaJsR+h:ywGuua3YaKC8XWX5qQuE7v8CJG

    • Detect Xworm Payload

    • Skuld family

    • Skuld stealer

      An info stealer written in Go lang.

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks