Analysis

  • max time kernel
    25s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    11/08/2024, 23:57

General

  • Target

    SimpleToolZ.exe

  • Size

    56.5MB

  • MD5

    d096ccc62bc5ca43fdaecdeb60579aaf

  • SHA1

    ec7ea18a482a749f7d0c02a3e7c0c695ce28b74e

  • SHA256

    b8b9a275dd7074b5169977ea5e71d0399845e88408d94b71878a7950d926c316

  • SHA512

    006bd3eca1a2d6b16ffd1cb46e0066756eb57abb9b618454a186b1d1fd237bfed23c0bfe197ada61520a9d5e98b2bf360beb528a46687ae5e3c9da60ccd923b2

  • SSDEEP

    1572864:amKm5eNXA90p2N+iUgK1EEZBplhSwPTMSnhXQYoeQBPd:t5ec6C+imvrM0QYoeu1

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Creates new service(s) 2 TTPs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Power Settings 1 TTPs 2 IoCs

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

  • Drops file in System32 directory 9 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SimpleToolZ.exe
    "C:\Users\Admin\AppData\Local\Temp\SimpleToolZ.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\Loader.exe
      "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Drops file in Drivers directory
      • Checks BIOS information in registry
      • Deletes itself
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C Powercfg -h off
        3⤵
        • Power Settings
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Windows\system32\powercfg.exe
          Powercfg -h off
          4⤵
          • Power Settings
          • Suspicious use of AdjustPrivilegeToken
          PID:2948
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c powershell "Confirm-SecureBootUEFI" > C:\secureboot_status.txt
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell "Confirm-SecureBootUEFI"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3012
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2800
        • C:\Windows\System32\reg.exe
          C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • UAC bypass
          • Modifies registry key
          PID:2748
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Windows\system32\sc.exe
          sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
          4⤵
          • Launches sc.exe
          PID:2756
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C sc start windowsproc
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2632
        • C:\Windows\system32\sc.exe
          sc start windowsproc
          4⤵
          • Launches sc.exe
          PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2899}\favicon1.ico

    Filesize

    244KB

    MD5

    894384c5a192fe45e6d2e29b60a10a11

    SHA1

    56f43d42367b86e439bb640df007649386c5be91

    SHA256

    f0dcfacc6d28747a0ff8c3a9001fe4c7c4c387bd150a82895f8ea21ce201eec8

    SHA512

    95776900db01834bf0652cda1e96cb108c062cf5a71d9d6423b8f601fb116620293738e7ed31dff9886612be099683a9ee1078d5d0c81ec457c629d54960cf14

  • C:\secureboot_status.txt

    Filesize

    447B

    MD5

    cf8355d29a9d97cf5d6a673e64f9fcda

    SHA1

    9050f2dd8c50258f22fea4278268357d4133668f

    SHA256

    7fc3a10f21c5405061e1eff734790d1a640ddc1971a84e60070288af8bb161d3

    SHA512

    9669cb9c7100047e4f0c0478edc3c390fde9fa8ae98e5aaf4c204520f6eb3e57c11eb388f72986afd21781c24b2796c39e1aa291d34f481b0de9c94b81bd1a48

  • memory/2236-64-0x0000000004980000-0x000000000498A000-memory.dmp

    Filesize

    40KB

  • memory/2236-65-0x0000000004980000-0x000000000498A000-memory.dmp

    Filesize

    40KB

  • memory/2716-0-0x0000000077260000-0x0000000077262000-memory.dmp

    Filesize

    8KB

  • memory/2716-1-0x0000000140000000-0x0000000141000000-memory.dmp

    Filesize

    16.0MB

  • memory/2716-13-0x0000000140000000-0x0000000141000000-memory.dmp

    Filesize

    16.0MB

  • memory/3012-28-0x000000001B730000-0x000000001BA12000-memory.dmp

    Filesize

    2.9MB

  • memory/3012-29-0x00000000027E0000-0x00000000027E8000-memory.dmp

    Filesize

    32KB