Resubmissions

20/08/2026, 03:04

260820-dk3lcsyemh

20/08/2026, 02:57

260820-dfnxeabb277

Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 02:57

General

  • Target
    jjsploit_8.18.9_x64_en-US.msi
  • Size 6.1MB
  • Sample260820-dfnxeabb27
  • SHA256 85bd7c04a0d0fe935e405b4a912f99c90a4af8057d249a57e3c5f585de7d1897
  • 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_8.18.9_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:3036
  • 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:4500
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AEBCA819BB607A4164BC42D664D11D22 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4712
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1468
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4972

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59cdb7.rbs

          • Path C:\Config.Msi\e59cdb7.rbs
          • Size 20KB
          • SHA256 9e766e01d89ac43d3bbab41332ff26a85c53202c0c009cc5062f807cc55ed8df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.exe

          • Path C:\Program Files\jjsploit\jjsploit.exe
          • Size 17.7MB
          • SHA256 0c070f2230646cf5f9f1b691710aabd5dbbd42294d637c41f96474fab58bca35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.lnk

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk
          • Size 1KB
          • SHA256 0e863708dd6c131a6f437b7426bd5e4362f5c6cfea6e66c8d4c65a5e3a85a48a
          • MD5 SHA1 SHA512 TLSH

          jjsploit.lnk~RFe59d76b.TMP

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk~RFe59d76b.TMP
          • Size 1KB
          • SHA256 565d5c353ec1c758a0fca7a3b210fff5b268bac050c5db7d2cd62af70ee23267
          • MD5 SHA1 SHA512 TLSH

          MSI73DE.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI73DE.tmp
          • Size 132KB
          • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59cdb6.msi

          • Path C:\Windows\Installer\e59cdb6.msi
          • Size 6.1MB
          • SHA256 85bd7c04a0d0fe935e405b4a912f99c90a4af8057d249a57e3c5f585de7d1897
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 5250c14d5f07b3f5dcc181bf9feaff6becf58195819d519ec36515bf1a604702
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {75a30bdc-88a5-41bf-a7eb-04090b163412}_OnDiskSnapshotProp

          • Path \??\Volume{c4eee659-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{75a30bdc-88a5-41bf-a7eb-04090b163412}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 4a5f4f5f1374e71585cf601de19f8894eff7184c9d368523a958b9096152bcca
          • MD5 SHA1 SHA512 SSDEEP TLSH