Analysis

  • max time kernel
    149s
  • max time network
    133s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/04/2026, 12:20

General

  • Target
    tf-march2011-windows.exe
  • Size 2.0MB
  • Sample260404-phyeeabz8n
  • SHA256 e57c55a7d8a7b9977a85f8540e61b229cef443c0ec1f0ad66a9fa07b5fc5d1d5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Gandcrab family
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NSIS installer 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tf-march2011-windows.exe
    "C:\Users\Admin\AppData\Local\Temp\tf-march2011-windows.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4512

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        treefinder.exe

        • Path C:\Program Files (x86)\Treefinder\treefinder.exe
        • Size 34KB
        • SHA256 999b5cada72492038fc7a92b13545956a7107c7431595f2f2465b57eeb65a8dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk6AEB.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512 TLSH