General

  • Target

    NIXWARE_Slayed.exe

  • Size

    39.9MB

  • Sample

    250307-vh4t3stvas

  • MD5

    d4752331cbd993efc8978cc66c7c2b38

  • SHA1

    b4aded4122cb3d93593519c6d72d6778a736549c

  • SHA256

    8ef807d213e1d7461dd13de75004d24625088d9c9f4008420c64cb3791586e17

  • SHA512

    5c5ba7dbcb7e174d1f97bd706abf62273f017c12e6bef50d12d828c2a9d4799d1619ca34b8014d526f7dbb9ba955d8abc7bd33c3f6424aeb21aa01af2c85c402

  • SSDEEP

    786432:DGOlEaoPvuMMXU2o3SIkDhSdKqlH7R32AsKpDW800m70T+eUzN4v5aF+SaSs3QWt:DHIPvuMwUp3SVMpHldxM80n7Q+MaeSi/

Malware Config

Extracted

Family

xworm

C2

aboltustimoha-43339.portmap.host:43339

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Targets

    • Target

      NIXWARE_Slayed.exe

    • Size

      39.9MB

    • MD5

      d4752331cbd993efc8978cc66c7c2b38

    • SHA1

      b4aded4122cb3d93593519c6d72d6778a736549c

    • SHA256

      8ef807d213e1d7461dd13de75004d24625088d9c9f4008420c64cb3791586e17

    • SHA512

      5c5ba7dbcb7e174d1f97bd706abf62273f017c12e6bef50d12d828c2a9d4799d1619ca34b8014d526f7dbb9ba955d8abc7bd33c3f6424aeb21aa01af2c85c402

    • SSDEEP

      786432:DGOlEaoPvuMMXU2o3SIkDhSdKqlH7R32AsKpDW800m70T+eUzN4v5aF+SaSs3QWt:DHIPvuMwUp3SVMpHldxM80n7Q+MaeSi/

    • Detect Xworm Payload

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Exelastealer family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Modifies Windows Firewall

    • Stops running service(s)

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • 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.

    • Adds Run key to start application

    • 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.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks