Analysis

  • max time kernel
    142s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-06-2024 20:31

General

  • Target

    JITStarter.exe

  • Size

    3.6MB

  • MD5

    3a410cb997acba8b4dbe9d56b85c8684

  • SHA1

    27606b79c325f88c63af65f5a7ca9cbfb68e2753

  • SHA256

    24ec014d446db69e549b233aff46015e8ee561fa66241f8075c3383a6c8f1ee6

  • SHA512

    5d19215003a0f16ed4ee426db0e914d2bae21c6e28f107717e10eab7696eb4d2dd18e8548e18c3ab9db75ba7fc9c172f50ab80a1877b33079696b3f137cd222e

  • SSDEEP

    98304:DvyRYhAywIk6T3JOxeUdjiAdYVSUhM30z8zxs:D5hAywItSeWjiVSZFs

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JITStarter.exe
    "C:\Users\Admin\AppData\Local\Temp\JITStarter.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Windows\SysWOW64\cmd.exe
      /C vcredist86.exe /install /quiet /norestart
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      PID:1596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3612-0-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-1-0x0000000077214000-0x0000000077216000-memory.dmp

    Filesize

    8KB

  • memory/3612-2-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-4-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-5-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-3-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-7-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-6-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB

  • memory/3612-8-0x0000000000640000-0x00000000010B4000-memory.dmp

    Filesize

    10.5MB