Extracted

• • Target

    UDK.exe

  • Size

    55.4MB

  • MD5

    b648515a7c3c91a518c9e1a37437de43

  • SHA1

    226650b25f6d258d511f536f64ccbd4119c04bcc

  • SHA256

    dc7f7402416fb59e61821b28cbf5ed49ed21db76bdff3ab014824b861d065d0a

  • SHA512

    b0903a0322daf5c42a3a76d96587cabebb63b03704daee8de15891d198fd0d8d2339b7b565659de2b411ce69731afc7a4ecd184958b6b460b376c92c77f44e44

  • SSDEEP

    393216:TnIPO8n+d33S2uCNKYzwVrbWUKwM5L/geDlHom8lfwoPtC0Tljqyrqez2Qp++OtD:TnrqoiqPuzRNao4IlVqL7Q/48O

  Score

  10^/10

  azorultcrimsonratdarkcometrmsagilenetdefense_evasiondiscoveryevasionexecutioninfostealerlateral_movementpersistenceprivilege_escalationrattrojanupxbootkitimpactransomware

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    trojaninfostealerazorult

  • CrimsonRAT main payload

  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

    ratcrimsonrat

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    trojanratdarkcomet

  • Modifies WinLogon for persistence

    persistence

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • Modifies visiblity of hidden/system files in Explorer

    evasion

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

    trojanratrms

  • UAC bypass

    evasiontrojan

  • Windows security bypass

    evasiontrojan

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Grants admin privileges

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

  • Remote Service Session Hijacking: RDP Hijacking

    Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    lateral_movement

  • Renames multiple (163) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Blocks application from running via registry modification

    Adds application to list of disallowed applications.

    evasion

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Modifies Windows Firewall

    evasion

  • Server Software Component: Terminal Services DLL

    persistence

  • Sets file to hidden

    Modifies file attributes to stop it showing in Explorer etc.

    evasion

  • Stops running service(s)

    evasionexecution

  • Checks computer location settings

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

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Obfuscated with Agile.Net obfuscator

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    agilenet

  • Adds Run key to start application

    persistence

  • Blocklisted process makes network request

  • Checks whether UAC is enabled

    evasiontrojan

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Drops desktop.ini file(s)

  • 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.

  • Modifies WinLogon

    persistence

  • Password Policy Discovery

    Attempt to access detailed information about the password policy used within an enterprise network.

    discovery

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • AutoIT Executable

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory

  • Hide Artifacts: Hidden Users

    defense_evasion

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

  • UPX packed file

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

    upx
  behavioral1behavioral2behavioral3