Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18/01/2025, 03:28

General

  • Target
    setup64v6.9.7.msi
  • Size 32.6MB
  • Sample250118-d1b4caskbr
  • SHA256 69296a4784cccf765797541b56bbc7368705b8823b0032b7a55d7465bc357f55
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\setup64v6.9.7.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2468
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding A58EDD123122275E4917BA3881DCA7F8 M Global\MSI0000
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Program Files directory
      • Loads dropped DLL
      PID:1812
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2864
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000049C" "00000000000005A8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2728

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        f769f9b.rbs

        • Path C:\Config.Msi\f769f9b.rbs
        • Size 212KB
        • SHA256 7ee8cfb895f36868bd9c8f0e352744fb4703e8918f528eb007658cb343a7e119
        • MD5 SHA1 SHA512 SSDEEP

        build.dat

        • Path C:\Program Files (x86)\Windows NT\build.dat
        • Size 30.5MB
        • SHA256 0d7fc934012eb28b28d23da5aeff8e9453baec7622a1dee6994c82f8f9188afb
        • MD5 SHA1 SHA512 SSDEEP

        MSIA0E3.tmp

        • Path C:\Windows\Installer\MSIA0E3.tmp
        • Size 205KB
        • SHA256 da5385fb09f55a8c13ad519be8e3d603fb6d60636e438ec4f60f09023c1f4460
        • MD5 SHA1 SHA512 SSDEEP

        f769f99.msi

        • Path C:\Windows\Installer\f769f99.msi
        • Size 32.6MB
        • SHA256 69296a4784cccf765797541b56bbc7368705b8823b0032b7a55d7465bc357f55
        • MD5 SHA1 SHA512 SSDEEP

        memory/1812-21-0x0000000140000000-0x0000000141E91000-memory.dmp

        memory/1812-22-0x0000000140000000-0x0000000141E91000-memory.dmp

        memory/1812-23-0x0000000140000000-0x0000000141E91000-memory.dmp