Analysis

  • max time kernel
    52s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 17:23

General

  • Target
    bd1a77d3a81d86001db39b9f20de204e_JaffaCakes118.msi
  • Size 948KB
  • Sample240618-vykfdaxbrm
  • SHA256 a9079d044e1b06d7d244363a0aecadf0034727670695cf9e6889c487fe9a0ac9
  • 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.

  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Event Triggered Execution: Installer Packages 1 TTPs 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 51 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\bd1a77d3a81d86001db39b9f20de204e_JaffaCakes118.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4712
  • 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:4800
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5088
    • C:\Windows\Installer\MSI82EC.tmp
      "C:\Windows\Installer\MSI82EC.tmp"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4560
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        MSI82EC.tmp

        • Path C:\Windows\Installer\MSI82EC.tmp
        • Size 924KB
        • SHA256 fc73a896d2c027eb22669084f59c03565e9a30c204f4ccbcb2b34f29d64c9944
        • MD5 SHA1 SHA512 SSDEEP

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 23.7MB
        • SHA256 613767d85734fb5074a3385850b9ad16838448dc761ba759c3d4987de343b511
        • MD5 SHA1 SHA512 SSDEEP

        {ee2a6e71-d2f4-4f1c-893c-18f2c4a181a9}_OnDiskSnapshotProp

        • Path \??\Volume{8a2a71c9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{ee2a6e71-d2f4-4f1c-893c-18f2c4a181a9}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 1d3583f866d801de32b2503da29aa2a7a39c95b59f3fefc8d69d70cd00eb94c6
        • MD5 SHA1 SHA512 SSDEEP