Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-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 17 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 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 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
    • Suspicious use of SetWindowsHookEx
    PID:4780
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding BD6EF27158B71C8B763769BC60E8D81C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5524
    • C:\Windows\Installer\MSIA564.tmp
      "C:\Windows\Installer\MSIA564.tmp" /DontWait regsvr32.exe /s /i "C:\ProgramData\ApplicationData\FC9978.dat"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4976
  • C:\Windows\System32\regsvr32.exe
    "C:\Windows\System32\regsvr32.exe" /s /i "C:\ProgramData\ApplicationData\FC9978.dat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5240
    • 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:2628
  • C:\Windows\system32\regsvr32.exe
    "C:\Windows\system32\regsvr32.exe" /s /i C:\ProgramData\ApplicationData\FC9978.dat
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4340
    • 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:4132
  • C:\Windows\system32\regsvr32.exe
    "C:\Windows\system32\regsvr32.exe" /s /i C:\ProgramData\ApplicationData\FC9978.dat
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4700
    • 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:4924

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e59a08f.rbs

        • Path C:\Config.Msi\e59a08f.rbs
        • Size 1KB
        • SHA256 9c1a0a0ad7907187177757adcc1e5cf73f55a49fd738b01f85a8a73463436e26
        • MD5 SHA1 SHA512 TLSH

        FC9978.dat

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

        MSIA1D4.tmp

        • Path C:\Windows\Installer\MSIA1D4.tmp
        • Size 721KB
        • SHA256 52f41817669af7ac55b1516894ee705245c3148f2997fa0e6617e9cc6353e41e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIA564.tmp

        • Path C:\Windows\Installer\MSIA564.tmp
        • Size 412KB
        • SHA256 428272d3077ca3091dd81f3690a9b9c607687fb31e9e4ca8a054bc94793c492d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2628-40-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/2628-42-0x0000000003EE0000-0x0000000003F50000-memory.dmp

        memory/2628-41-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/2628-43-0x0000000003FD0000-0x0000000003FEE000-memory.dmp

        memory/2628-44-0x0000000006110000-0x0000000006146000-memory.dmp

        memory/2628-45-0x0000000006260000-0x000000000626C000-memory.dmp

        memory/2628-46-0x0000000006410000-0x0000000006476000-memory.dmp

        memory/2628-49-0x0000000006D40000-0x0000000006DD2000-memory.dmp

        memory/2628-50-0x00000000073A0000-0x000000000795A000-memory.dmp

        memory/2628-51-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/2628-53-0x00000000070B0000-0x00000000071B2000-memory.dmp

        memory/2628-54-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-55-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-77-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-87-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-99-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-108-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-122-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-131-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-145-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-175-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-174-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-171-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-169-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-168-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-166-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-163-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-161-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-159-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-155-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-157-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-154-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-151-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-149-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-147-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-143-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-141-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-139-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-137-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-135-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-134-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-129-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-128-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-125-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-124-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-119-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-117-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-116-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-113-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-111-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-110-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-106-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-103-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-92-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-90-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-101-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-97-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-95-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-93-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-85-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-81-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-79-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-83-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-75-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-73-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-72-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-70-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-68-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-65-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-63-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-61-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-60-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-57-0x00000000070B0000-0x00000000071AD000-memory.dmp

        memory/2628-3189-0x0000000008200000-0x0000000008818000-memory.dmp

        memory/2628-3190-0x0000000007380000-0x000000000738A000-memory.dmp

        memory/2628-3200-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/4132-3195-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/4132-3198-0x0000000074D30000-0x0000000074F69000-memory.dmp

        memory/4924-3208-0x0000000074D30000-0x0000000074F69000-memory.dmp