Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 20:13

General

  • Target
    jjsploit_8.18.4_x64_en-US.msi
  • Size 6.0MB
  • Sample260731-yzq64agj21
  • SHA256 ea003af9543a0300e61e0e4df3ed6347fc4eb89fa79a110467581be59f9780c5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 1 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 Program Files directory 21 IoCs
  • Drops file in Windows directory 14 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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\jjsploit_8.18.4_x64_en-US.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1964
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B431EE897E91669CAE2A16DDA04F25B7 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4288
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3636
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2196

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a4b63.rbs

          • Path C:\Config.Msi\e5a4b63.rbs
          • Size 20KB
          • SHA256 fe307025dd4e446e6ad8d910fe9b6de20571d851f7293a74f97f4d9ffe3efcdf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.exe

          • Path C:\Program Files\jjsploit\jjsploit.exe
          • Size 17.6MB
          • SHA256 bb8da5fea36720a6a3b33543742f6c04a9bbbb394e97e8cd7af0cb24873a0f7c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.lnk

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk
          • Size 1KB
          • SHA256 173c4cf0cfbb043bd91a591a28c6179faa7a48e4db01c9e04710c3a2a7a79e3b
          • MD5 SHA1 SHA512 TLSH

          jjsploit.lnk~RFe5a5620.TMP

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk~RFe5a5620.TMP
          • Size 1KB
          • SHA256 e8fe21660e7fef04e515c7fce20b9d27b86e4efd90b3bfc18c5172d13b1a4825
          • MD5 SHA1 SHA512 TLSH

          MSIDD18.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDD18.tmp
          • Size 132KB
          • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a4b62.msi

          • Path C:\Windows\Installer\e5a4b62.msi
          • Size 6.0MB
          • SHA256 ea003af9543a0300e61e0e4df3ed6347fc4eb89fa79a110467581be59f9780c5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 fbd46da759ffb0fd7bef4af7005480efbb9cc2e61feb939c0a565e73808691cb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {050bb12a-98ca-4531-8151-314663284c3b}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{050bb12a-98ca-4531-8151-314663284c3b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 53522be83b768a30dccb117dd3dfaecd9860fc4f9e47365b36d4071348f18e93
          • MD5 SHA1 SHA512 SSDEEP TLSH