Analysis

  • max time kernel
    93s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2023 01:16

General

  • Target

    9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe

  • Size

    6.6MB

  • MD5

    3459f3a3d65fa445d1eb52611ac55f6c

  • SHA1

    135c835edfeec60e41bc1b24f1a10ad7a86c9a00

  • SHA256

    9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944

  • SHA512

    1dbf42476304cefd859754f1d8219c0b37cc5b2885527f874245a37df5e1145dbcc1ff1ce34bdf0fa47df8a503e37244ff07a37bb92e8f2514533d8a89926d8b

  • SSDEEP

    98304:MsRRwjPcDZ3IFTbWJ6tWUQSPZyq2XOD6gwosVvC8pQ6TYupGFBUMnEB:MsRKjkNcyDVSROtgwJVvHjTrUIMni

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 whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe
    "C:\Users\Admin\AppData\Local\Temp\9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.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 AdjustPrivilegeToken
    PID:3252
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3252 -s 724
      2⤵
      • Program crash
      PID:1568
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 408 -p 3252 -ip 3252
    1⤵
      PID:1724

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Discovery

    Query Registry

    2
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3252-133-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-134-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-135-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-136-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-137-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-138-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-139-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-140-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-141-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-142-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB

    • memory/3252-143-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp
      Filesize

      16.5MB