Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 10:09

General

  • Target
    9c71b3dd94329b2649fd36ccd5f0df919126284883543cff573e103076ce3506.msi
  • Size 3.8MB
  • Sample240402-l64dsaef96
  • SHA256 9c71b3dd94329b2649fd36ccd5f0df919126284883543cff573e103076ce3506
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 2 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 9 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 22 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\9c71b3dd94329b2649fd36ccd5f0df919126284883543cff573e103076ce3506.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2224
  • 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:680
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3224
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1181B6BB8587C6D3F8AC4AF29CDF47F9
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:492
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:1208
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2908
      • C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files\iTunesHelper.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files\iTunesHelper.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2412
        • \??\c:\temp\Autoit3.exe
          "c:\temp\Autoit3.exe" c:\temp\script.au3
          4⤵
          • Executes dropped EXE
          PID:5072
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 640
            5⤵
            • Program crash
            PID:3652
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files"
        3⤵
          PID:3092
        • C:\Windows\SysWOW64\ICACLS.EXE
          "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\." /SETINTEGRITYLEVEL (CI)(OI)LOW
          3⤵
          • Modifies file permissions
          PID:1796
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5072 -ip 5072
      1⤵
        PID:4524

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            files.cab

            • Path C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files.cab
            • Size 3.5MB
            • SHA256 249ccc81506722721da5774e2d3718b02fa79f1a2f4024e609e6fcf1b6bedf0a
            • MD5 SHA1 SHA512 SSDEEP

            CoreFoundation.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files\CoreFoundation.dll
            • Size 1.5MB
            • SHA256 1e3bddd68b9dbdf728afa28a29db324b21d71fa145e6efff8d44b46f3637d9f4
            • MD5 SHA1 SHA512 SSDEEP

            iTunesHelper.exe

            • Path C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files\iTunesHelper.exe
            • Size 358KB
            • SHA256 0d8878cca08903777888b3681f90e4a07c7aef7d9600a67dfa985844d4bf5eda
            • MD5 SHA1 SHA512 SSDEEP

            sqlite3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\files\sqlite3.dll
            • Size 1.6MB
            • SHA256 3035fb3598ef2dfce3e0472c44a6c53a7c0e18b451ca58d8ad6def288d890ca3
            • MD5 SHA1 SHA512 SSDEEP

            msiwrapper.ini

            • Path C:\Users\Admin\AppData\Local\Temp\MW-8f19ae6b-4911-4000-8e92-e18900d12b10\msiwrapper.ini
            • Size 1KB
            • SHA256 b2f084241342d2ec20b8f03144efc78e56f714136f89bb5529e0cfc015ede14d
            • MD5 SHA1 SHA512

            MSIFFFB.tmp

            • Path C:\Windows\Installer\MSIFFFB.tmp
            • Size 208KB
            • SHA256 107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c
            • MD5 SHA1 SHA512 SSDEEP

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 23.7MB
            • SHA256 d9e58e2ec7c244054a1a9a2573351d7aa53dc2d1a89db00c4351960f0d786f60
            • MD5 SHA1 SHA512 SSDEEP

            {4355b8d0-f102-45ed-a9d5-7d32ddb94230}_OnDiskSnapshotProp

            • Path \??\Volume{e992337d-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{4355b8d0-f102-45ed-a9d5-7d32ddb94230}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 f427f725f5838643c3465c09e16b108d9ee7cf1db1fc8da65e271af87410560c
            • MD5 SHA1 SHA512 SSDEEP

            Autoit3.exe

            • Path \??\c:\temp\Autoit3.exe
            • Size 872KB
            • SHA256 237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
            • MD5 SHA1 SHA512 SSDEEP

            script.au3

            • Path \??\c:\temp\script.au3
            • Size 470KB
            • SHA256 97c6d302415978c1e3b6e336f213fc4a66c814f489604e27d277cfd259342fe0
            • MD5 SHA1 SHA512 SSDEEP

            test.txt

            • Path \??\c:\temp\test.txt
            • Size 76B
            • SHA256 1e5385399bd1a8d6d531b820da88d0b217b863ec2e7100e1533e64605fadd898
            • MD5 SHA1 SHA512

            memory/2412-77-0x0000024BBB5D0000-0x0000024BBB76F000-memory.dmp

            memory/2412-87-0x000000005D050000-0x000000005D1ED000-memory.dmp

            memory/2412-89-0x0000024BBB5D0000-0x0000024BBB76F000-memory.dmp

            memory/5072-88-0x0000000004D80000-0x0000000005D50000-memory.dmp