General

  • Target

    VPN_Unlimited.exe

  • Size

    160.3MB

  • Sample

    241014-wgjyysxhkb

  • MD5

    cda8e081075e3bb304e8d63d969d9532

  • SHA1

    a11b9cb322ab78c6ffa2543d9233b6ab77896f6d

  • SHA256

    306acb2f7180dba3d077f0ab2ca0d22236c62e713c34533817c1814465eaa133

  • SHA512

    fff3f289601cbb13fe8ffcfd81c1c9542994773f14a026a05621ecce609ac9dc82dce85f4371e3e62b38981ec30c4bfac30e6e434947261c328806e83415230c

  • SSDEEP

    3145728:HyZCu90UFTdwRHjT2ZF0CzHdi89oBunWaCtnbp2q6s/rDLiIpvJ1:H4lFTduuZFlH7WaCtl2q6KjiIpvn

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://46.8.227.16/uploads/meshagent32-mesh.png

Targets

    • Target

      VPN_Unlimited.exe

    • Size

      160.3MB

    • MD5

      cda8e081075e3bb304e8d63d969d9532

    • SHA1

      a11b9cb322ab78c6ffa2543d9233b6ab77896f6d

    • SHA256

      306acb2f7180dba3d077f0ab2ca0d22236c62e713c34533817c1814465eaa133

    • SHA512

      fff3f289601cbb13fe8ffcfd81c1c9542994773f14a026a05621ecce609ac9dc82dce85f4371e3e62b38981ec30c4bfac30e6e434947261c328806e83415230c

    • SSDEEP

      3145728:HyZCu90UFTdwRHjT2ZF0CzHdi89oBunWaCtnbp2q6s/rDLiIpvJ1:H4lFTduuZFlH7WaCtl2q6KjiIpvn

    • Detects MeshAgent payload

    • MeshAgent

      MeshAgent is an open source remote access trojan written in C++.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • xmrig

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • 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

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Stops running service(s)

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • 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.

    • 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

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks