Extracted

Extracted

• • Target

    Install.exe

  • Size

    259KB

  • MD5

    28db4677dcbbaa0a4c5adbc02c9da4f3

  • SHA1

    e1f0199ed131a90e25204399e4e876da64ea3ba5

  • SHA256

    b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c

  • SHA512

    718ad88f930160a83c59d9f73d41cf4ea76de3c929956bffb618631d6450b7f59d4b2eb62afa59eff29461b256c402d387df9fdadee9a1a9d1b5e65cea45de52

  • SSDEEP

    6144:ByHp/aGMFlSShM00Iyew/2xrvhwCS9KSyiIBov:IJ/pFJIyN/2RbhHiIS

  Score

  10^/10

  gurcuxwormbootkitdefense_evasiondiscoveryexecutionpersistenceratstealertrojan

  • Detect Xworm Payload

  • Gurcu family

    gurcu

  • Gurcu, WhiteSnake

    Gurcu aka WhiteSnake is a malware stealer written in C#.

    stealergurcu

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Xworm family

    xworm

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Sets service image path in registry

    persistence

  • 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.

  • Drops startup file

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Adds Run key to start application

    persistence

  • 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.

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1