General

  • Target

    Release.zip

  • Size

    83KB

  • Sample

    240808-c1jbzssclf

  • MD5

    69b1b9dc3f4895d23f2ad606793ba22b

  • SHA1

    371153ef608929c6b6163abc27fa2bfb152ee15d

  • SHA256

    a95e3e88ecb9875925d4fc8598d48eb228cf763993662d0766bdc78948737f38

  • SHA512

    5acad387d737039cc1e2d261ad4cbf095833b2756e096f33f12c3b55818c1de5ac13b5ad96f4b776760e634b9cf8f6daa43924b1986bde7ea246e330bac3e67a

  • SSDEEP

    1536:zhZqSPCcRYTljbYNiUDbxSBjl0X60S99L6fmt2TAMQeTVNy+Jgcp9QbtQ+254:SSaFbPQFol0KDo1vNFJJp9954

Malware Config

Extracted

Family

xworm

Version

5.0

C2

la-michael.gl.at.ply.gg:65463

Mutex

641UIwoUJK0Mht9q

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      Release/DwmLutGUI.exe

    • Size

      48KB

    • MD5

      940026092c35c84f5de3369dbec24576

    • SHA1

      679ec6ca51d3e47dfac2a1cdbe3b0b153be1b2b6

    • SHA256

      4ac8778ddb796a771072f22cce6bba6fe36bcd7f10b66379ccc6c40fe7ff0a2b

    • SHA512

      40a8893e3ebceb30d3f73eee5d5b6de8a2cff76387ec04955327b834bd487d0b3d7f9bcd251266a9b6aff634a527f3c1a089dc034836cd9d4df8d3918e9eb94c

    • SSDEEP

      768:O/FOFRvMtpRGM7pnXm1V0q5nCI2CH8kSiJVDDDDDxVDDDDDsytYcFwVc6K:8E2XHq5nCI2K8kSiUewVcl

    • Detect Xworm Payload

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Sets service image path in registry

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks