Extracted

• • Target

    main.exe

  • Size

    36.5MB

  • MD5

    6f5cb1668158f94f78a0a4b61a3c206c

  • SHA1

    e677d189b7a92f847d6e3f656d3bbb48633622a7

  • SHA256

    45a46643891dcbb79127ad3d95969a975d5e409413fb9c3633491affc182f8f3

  • SHA512

    9d82f1549a05844e886c8e112eea4466a5c754bf7e299feac7f1629e91a6923e3edb41762e5162eee2ea08ba8f27589e5bcf301d03ae332cc5037222edaac63c

  • SSDEEP

    786432:s8MdYj/rmTVKqB2cYrlyaBa5/X3QSPTvoIkQr7PniKN6:3jiTkrlyzX3QSPZDrWK0

  Score

  10^/10

  upxgurcumilleniumratcollectioncredential_accessdefense_evasiondiscoveryevasionexecutionpersistenceprivilege_escalationpyinstallerratspywarestealer

  • Gurcu family

    gurcu

  • Gurcu, WhiteSnake

    Gurcu is a malware stealer written in C#.

    stealergurcu

  • MilleniumRat

    MilleniumRat is a remote access trojan written in C#.

    ratstealermilleniumrat

  • Milleniumrat family

    milleniumrat

  • Modifies WinLogon for persistence

    persistence

  • Process spawned unexpected child process

    This typically indicates the parent process was compromised via an exploit or macro.

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Contacts a large (2279) amount of remote hosts

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

    discovery

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Downloads MZ/PE file

  • Stops running service(s)

    evasionexecution

  • 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.

  • Clipboard Data

    Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    collection

  • 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.

    spywarestealer

  • Unsecured Credentials: Credentials In Files

    Steal credentials from unsecured files.

    credential_accessstealer

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • Adds Run key to start application

    persistence

  • 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.

  • Obfuscated Files or Information: Command Obfuscation

    Adversaries may obfuscate content during command execution to impede detection.

    defense_evasion

  • Drops file in System32 directory

  • Enumerates processes with tasklist

    discovery

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

  • UPX packed file

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

    upx
  behavioral1behavioral2