Analysis

  • max time kernel
    29s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-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.

  • Themida packer 11 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).

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 20 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:1720
    • C:\Windows\SysWOW64\cmd.exe
      /C vcredist86.exe /install /quiet /norestart
      2⤵
        PID:2288
      • C:\Windows\SysWOW64\cmd.exe
        /C vcredist64.exe /install /quiet /norestart
        2⤵
          PID:2496
        • C:\Windows\SysWOW64\cmd.exe
          /C NDP461-KB3102438-Web.exe /q /norestart
          2⤵
            PID:1100
          • C:\Windows\SysWOW64\cmd.exe
            /C dxwebsetup.exe /Q
            2⤵
              PID:2128
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 296
              2⤵
              • Program crash
              PID:1616

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1720-3-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-1-0x00000000774D0000-0x00000000774D2000-memory.dmp

            Filesize

            8KB

          • memory/1720-5-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-7-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-6-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-4-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-0-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-2-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-44-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-160-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-159-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/1720-165-0x0000000000280000-0x0000000000CF4000-memory.dmp

            Filesize

            10.5MB

          • memory/2288-39-0x0000000000750000-0x0000000000751000-memory.dmp

            Filesize

            4KB