General

  • Target

    source_prepared.exe.zip

  • Size

    75.4MB

  • Sample

    241209-vr3ndazman

  • MD5

    4fcd53614aa6627d8b076239c7a7fe2a

  • SHA1

    095e4e21e5fc181220ef0175684169608a2491b1

  • SHA256

    a9cb15dca3cc2222e45e31f33fd5f668a5d89473d235ca2c0a2b37c21079552d

  • SHA512

    95c55b241fdf7b19ea9766adbd0dd1f27edad9f449e42b7ec0f8969614d658a918faf3bc6583b76b0e849dfc15afb6f3d4e60818a3f0053141ce9d36606b6fb4

  • SSDEEP

    1572864:8uKrLtDcq2WKu8wnodZaz97QDiM5rIqFUk+UUwJHvAAtnjPZgX9JQ+xD:8ZVgq2WKubojqUDoqakiwJLjPaXsED

Malware Config

Targets

    • Target

      source_prepared.exe.zip

    • Size

      75.4MB

    • MD5

      4fcd53614aa6627d8b076239c7a7fe2a

    • SHA1

      095e4e21e5fc181220ef0175684169608a2491b1

    • SHA256

      a9cb15dca3cc2222e45e31f33fd5f668a5d89473d235ca2c0a2b37c21079552d

    • SHA512

      95c55b241fdf7b19ea9766adbd0dd1f27edad9f449e42b7ec0f8969614d658a918faf3bc6583b76b0e849dfc15afb6f3d4e60818a3f0053141ce9d36606b6fb4

    • SSDEEP

      1572864:8uKrLtDcq2WKu8wnodZaz97QDiM5rIqFUk+UUwJHvAAtnjPZgX9JQ+xD:8ZVgq2WKubojqUDoqakiwJLjPaXsED

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Enumerates VirtualBox DLL files

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Sets service image path in registry

    • 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.

    • 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

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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

    • Drops file in System32 directory

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks