Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    26/10/2026, 19:07

General

  • Target
    PC_Bypass.msi
  • Size 7.9MB
  • Sample261026-xsrcvayvf1
  • SHA256 44c55dd508b04f3e9a1efbd64b577f4dc0baa07ca3a090e6e227d3dcb724aa36
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 18 IoCs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\PC_Bypass.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3668
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4721C3AFE6FE6D89E0C5420C4BCA6510
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:948
    • C:\Windows\Installer\MSIB538.tmp
      "C:\Windows\Installer\MSIB538.tmp" /DontWait regsvr32.exe /s /i "C:\ProgramData\ApplicationData\FC9978.dat"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4684
  • C:\Windows\System32\regsvr32.exe
    "C:\Windows\System32\regsvr32.exe" /s /i "C:\ProgramData\ApplicationData\FC9978.dat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4940
    • C:\Windows\SysWOW64\regsvr32.exe
      /s /i "C:\ProgramData\ApplicationData\FC9978.dat"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4804
  • C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe /s /i C:\ProgramData\ApplicationData\FC9978.dat
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\SysWOW64\regsvr32.exe
      /s /i C:\ProgramData\ApplicationData\FC9978.dat
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      PID:3004
  • C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe /s /i C:\ProgramData\ApplicationData\FC9978.dat
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4688
    • C:\Windows\SysWOW64\regsvr32.exe
      /s /i C:\ProgramData\ApplicationData\FC9978.dat
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      PID:1704

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e58b1f9.rbs

        • Path C:\Config.Msi\e58b1f9.rbs
        • Size 1KB
        • SHA256 d6104880e04e7caedd9bef0a9ccc1822e28d23843849bd1f058b472faacb86e8
        • MD5 SHA1 SHA512 TLSH

        FC9978.dat

        • Path C:\ProgramData\ApplicationData\FC9978.dat
        • Size 1.3MB
        • SHA256 f39f1fe8a9bc200b99817b422db44a1d53646f1576c1da5c9702a628c1f0e984
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIB263.tmp

        • Path C:\Windows\Installer\MSIB263.tmp
        • Size 721KB
        • SHA256 52f41817669af7ac55b1516894ee705245c3148f2997fa0e6617e9cc6353e41e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIB538.tmp

        • Path C:\Windows\Installer\MSIB538.tmp
        • Size 412KB
        • SHA256 428272d3077ca3091dd81f3690a9b9c607687fb31e9e4ca8a054bc94793c492d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1704-3208-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/3004-3195-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/3004-3198-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/4804-140-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-108-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-42-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/4804-43-0x00000000058E0000-0x00000000058FE000-memory.dmp

        memory/4804-44-0x0000000005900000-0x0000000005936000-memory.dmp

        memory/4804-45-0x0000000005A40000-0x0000000005A4C000-memory.dmp

        memory/4804-46-0x0000000005B70000-0x0000000005BD6000-memory.dmp

        memory/4804-49-0x0000000006510000-0x00000000065A2000-memory.dmp

        memory/4804-50-0x0000000006B60000-0x0000000007104000-memory.dmp

        memory/4804-51-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/4804-52-0x00000000069A0000-0x0000000006AA2000-memory.dmp

        memory/4804-56-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-130-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-96-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-98-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-134-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-174-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-172-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-170-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-168-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-166-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-164-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-162-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-160-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-158-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-156-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-154-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-152-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-150-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-148-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-146-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-144-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-142-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-40-0x0000000074AF0000-0x0000000074D29000-memory.dmp

        memory/4804-138-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-132-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-66-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-41-0x00000000056C0000-0x0000000005730000-memory.dmp

        memory/4804-94-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-124-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-122-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-120-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-118-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-116-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-114-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-112-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-110-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-128-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-106-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-104-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-102-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-101-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-126-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-93-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-136-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-88-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-86-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-84-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-82-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-80-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-78-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-90-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-76-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-74-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-72-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-70-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-65-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-62-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-60-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-58-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-54-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-68-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-53-0x00000000069A0000-0x0000000006A9D000-memory.dmp

        memory/4804-3188-0x0000000007A90000-0x00000000080A8000-memory.dmp

        memory/4804-3189-0x0000000007250000-0x000000000725A000-memory.dmp

        memory/4804-3200-0x0000000074AF0000-0x0000000074D29000-memory.dmp