General

  • Target

    w.zip

  • Size

    7.7MB

  • Sample

    241128-xaz72awmbt

  • MD5

    9d50cd54890adf361bf032cc719d72cd

  • SHA1

    7a82332c39a7aede83a9b92c98b4f6ff982b0fff

  • SHA256

    ace47168d15ff37ea019a11bc0ad4f5353d277a9a9ebee6eeccb3101727cfb73

  • SHA512

    19ebe2b83023b1c0b394ffaaffa5812c43c45ba870fe8293c6b393fe33df9abd0606c22b1ae3870431fa899e6e88f5a9969fb79f208c16ded020d5d81ae2fadc

  • SSDEEP

    196608:PhyiwlApBaKR+w7tqsiNtGROHDqJhafp/VSFtMX30I8/rS:yApR+4tHiNtGRaG00FtJm

Malware Config

Extracted

Family

xworm

Version

5.0

C2

154.216.19.12:7000

Mutex

NuXVPKhDBKHTLExY

Attributes
  • install_file

    USB.exe

  • telegram

    https://api.telegram.org/bot7991608689:AAFUN71TMgyF_fzKFz6tyyBijaijI3s82tk

aes.plain

Targets

    • Target

      win12.exe

    • Size

      7.8MB

    • MD5

      1f9e89517854258c99877b23abe2e045

    • SHA1

      bddfa736ca2b22faa1e566f365c38f28b806bc95

    • SHA256

      6f32596ebd4cb3ac5feb00f1b3f71ed03eb28db04df44d878c6531240b1f3171

    • SHA512

      9659bf4f6d515e0338af4ada26d2bb31e2eb046f0ac9811b5d509c2edfa0d64957efcf53a0fb3c484b45469b9d7ff759eb268b4d478e0205e3bf7a9f6af36672

    • SSDEEP

      196608:45/HYUwfI9jUCzi4H1qSiXLGVi7DMgpZ3QJVM9QwCEc/jM:iYIHziK1piXLGVE4UeJV5g

    • 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.

    • A potential corporate email address has been identified in the URL: FluxJacker@mrfluxdevNewCLientFBB2DBF07DEA74533A82UserNameAdminOSFullNameMicrosoftWindows10ProUSBFalseCPUIntelCoreProcessorBroadwellGPUMicrosoftBasicDisplayAdapterRAMErrorGroupFJv1snew

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks