Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 10:13

General

  • Target
    d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe
  • Size 170KB
  • Sample261102-l9f3nagy4y
  • SHA256 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Downloads MZ/PE file 15 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 3 IoCs

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

  • Executes dropped EXE 15 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks system information in the registry 2 TTPs 2 IoCs

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

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe
    "C:\Users\Admin\AppData\Local\Temp\d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe"
    1⤵
    • Downloads MZ/PE file
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe
      "C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe"
      2⤵
      • Executes dropped EXE
      PID:1620
    • C:\Users\Admin\AppData\Roaming\pSljVf5\XOamdwSKKXG.exe
      "C:\Users\Admin\AppData\Roaming\pSljVf5\XOamdwSKKXG.exe"
      2⤵
      • Executes dropped EXE
      PID:4368
    • C:\Users\Admin\AppData\Roaming\7YLYZn6N3r\wP0ULTCyGGd.exe
      "C:\Users\Admin\AppData\Roaming\7YLYZn6N3r\wP0ULTCyGGd.exe"
      2⤵
      • Executes dropped EXE
      PID:3752
    • C:\Users\Admin\AppData\Roaming\vyp1fRHHA\UzangarV9vnWN.exe
      "C:\Users\Admin\AppData\Roaming\vyp1fRHHA\UzangarV9vnWN.exe"
      2⤵
      • Executes dropped EXE
      PID:5556
    • C:\Users\Admin\AppData\Roaming\T17v9Wu0u\M97tRgNESpzp.exe
      "C:\Users\Admin\AppData\Roaming\T17v9Wu0u\M97tRgNESpzp.exe"
      2⤵
      • Executes dropped EXE
      PID:5416
    • C:\Users\Admin\AppData\Roaming\jkCb2X66\JYTryutqA9.exe
      "C:\Users\Admin\AppData\Roaming\jkCb2X66\JYTryutqA9.exe"
      2⤵
      • Executes dropped EXE
      PID:1476
    • C:\Users\Admin\AppData\Roaming\gWZtX8Ib\LtvS7opfk.exe
      "C:\Users\Admin\AppData\Roaming\gWZtX8Ib\LtvS7opfk.exe"
      2⤵
      • Executes dropped EXE
      PID:5808
    • C:\Users\Admin\AppData\Roaming\HDVh1Tm\p387mk1jT.exe
      "C:\Users\Admin\AppData\Roaming\HDVh1Tm\p387mk1jT.exe"
      2⤵
      • Executes dropped EXE
      PID:860
    • C:\Users\Admin\AppData\Roaming\sGBNAJf6Ki\FKNwxQSsauA.exe
      "C:\Users\Admin\AppData\Roaming\sGBNAJf6Ki\FKNwxQSsauA.exe"
      2⤵
      • Executes dropped EXE
      PID:4860
    • C:\Users\Admin\AppData\Roaming\M3nXg0U9E\n4viMvzouwbhk.exe
      "C:\Users\Admin\AppData\Roaming\M3nXg0U9E\n4viMvzouwbhk.exe"
      2⤵
      • Executes dropped EXE
      PID:6036
    • C:\Users\Admin\AppData\Roaming\on219dDDz\se8TQNRCWptr.exe
      "C:\Users\Admin\AppData\Roaming\on219dDDz\se8TQNRCWptr.exe"
      2⤵
      • Executes dropped EXE
      PID:5240
    • C:\Users\Admin\AppData\Roaming\eYRWf53y\6ogM9plCMX1EP.exe
      "C:\Users\Admin\AppData\Roaming\eYRWf53y\6ogM9plCMX1EP.exe"
      2⤵
      • Executes dropped EXE
      PID:3248
    • C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe
      "C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe"
      2⤵
      • Enumerates VirtualBox registry keys
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks system information in the registry
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Reads the TCP/IP host and domain name from the registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:5592
    • C:\Users\Admin\AppData\Roaming\auOuyMCqqQM\cLvQBKTquS.exe
      "C:\Users\Admin\AppData\Roaming\auOuyMCqqQM\cLvQBKTquS.exe"
      2⤵
      • Executes dropped EXE
      PID:4868
    • C:\Users\Admin\AppData\Roaming\8NtQlVQuhs\tHtL8P3UeRa.exe
      "C:\Users\Admin\AppData\Roaming\8NtQlVQuhs\tHtL8P3UeRa.exe"
      2⤵
      • Executes dropped EXE
      PID:1048

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ~2fb13d8c.dat

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\~2fb13d8c.dat
        • Size 926KB
        • SHA256 6606ea30c164992165c752ea25e997bf1e4191d008ff15edd4996ba523e8633e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        YCL.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3dJWrwVCeYwwSuD52eSwN4sef3E\YCL.exe
        • Size 2.4MB
        • SHA256 562befc15c7530127bae89358c12bc7d902b74e747b349064c6a357cd1c49556
        • MD5 SHA1 SHA512 SSDEEP TLSH

        gsEs088VEBSt.exe

        • Path C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe
        • Size 581KB
        • SHA256 b4990aa8dd771a09af9b559f334d680d2cfce5ba8da4e5319b36720c9159897b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CsvkjT8rm2z.exe

        • Path C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe
        • Size 16KB
        • SHA256 69fe2d9f48833d84fc001182e34d1e004a1019208f261c19654598dbc390bc3c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/860-63-0x00007FF62AFB0000-0x00007FF62AFBC000-memory.dmp

        memory/1048-626-0x00007FF7771E0000-0x00007FF7771EC000-memory.dmp

        memory/1476-51-0x00007FF74DFF0000-0x00007FF74DFFC000-memory.dmp

        memory/1620-21-0x00007FF7EBC20000-0x00007FF7EBC2C000-memory.dmp

        memory/2600-13-0x0000000010000000-0x000000001001C000-memory.dmp

        memory/3248-87-0x00007FF788780000-0x00007FF78878C000-memory.dmp

        memory/3752-33-0x00007FF60D070000-0x00007FF60D07C000-memory.dmp

        memory/4368-27-0x00007FF699060000-0x00007FF69906C000-memory.dmp

        memory/4860-69-0x00007FF6725C0000-0x00007FF6725CC000-memory.dmp

        memory/4868-350-0x00007FF657BA0000-0x00007FF657BAC000-memory.dmp

        memory/5240-81-0x00007FF7BD550000-0x00007FF7BD55C000-memory.dmp

        memory/5416-45-0x00007FF6C95B0000-0x00007FF6C95BC000-memory.dmp

        memory/5556-39-0x00007FF682CB0000-0x00007FF682CBC000-memory.dmp

        memory/5592-663-0x00007FF612BF0000-0x00007FF612C89000-memory.dmp

        memory/5808-57-0x00007FF710F00000-0x00007FF710F0C000-memory.dmp

        memory/6036-75-0x00007FF7D66D0000-0x00007FF7D66DC000-memory.dmp