General

  • Target

    waltuhium

  • Size

    319KB

  • Sample

    240628-ahzj5ssglq

  • MD5

    ae6d8b16b72503593cadf7f086115e51

  • SHA1

    f9713b1e00aeadd9e32e3a62f3b3dc1b04414bd4

  • SHA256

    c06e74d4b6ed84b10a520d3ac9d6bd1c6050976e4d1685bd8932c9e202fa9876

  • SHA512

    b95876e7a12241ef2621a674d5e92b9a1409e384c9680936dcd3048b18fb5ff197e038585f4bbc2285a4ca548fb6bedd45c97e10054ee4430371e76ee8258946

  • SSDEEP

    6144:+FoQP2n9dH5M2vkm0y3Cl3pId9RZ9PvZJT3CqbMrhryfQNRPaCieMjAkvCJv1ViS:6oQP2n9dH5M2vkm0y3Cl3pId9RZ9PvZW

Malware Config

Targets

    • Target

      waltuhium

    • Size

      319KB

    • MD5

      ae6d8b16b72503593cadf7f086115e51

    • SHA1

      f9713b1e00aeadd9e32e3a62f3b3dc1b04414bd4

    • SHA256

      c06e74d4b6ed84b10a520d3ac9d6bd1c6050976e4d1685bd8932c9e202fa9876

    • SHA512

      b95876e7a12241ef2621a674d5e92b9a1409e384c9680936dcd3048b18fb5ff197e038585f4bbc2285a4ca548fb6bedd45c97e10054ee4430371e76ee8258946

    • SSDEEP

      6144:+FoQP2n9dH5M2vkm0y3Cl3pId9RZ9PvZJT3CqbMrhryfQNRPaCieMjAkvCJv1ViS:6oQP2n9dH5M2vkm0y3Cl3pId9RZ9PvZW

    • 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.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Grants admin privileges

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

    • XMRig Miner payload

    • 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)

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Stops running service(s)

    • Checks computer location settings

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

    • 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

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Enumerates connected drives

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

    • 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.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Files and Directories

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks