Resubmissions

27/06/2026, 19:46

260627-yg1b2sds217

27/06/2026, 19:09

260627-xt41bscy8x8

Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/06/2026, 19:09

General

  • Target
    jjsploit_8.17.9_x64_en-US.msi
  • Size 6.0MB
  • Sample260627-xt41bscy8x
  • SHA256 d60041d15a1294a6fb436d20bff8e2cfaffd6b61aeddd504aadd1a35dc7f5ddd
  • 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 2 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_8.17.9_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:5804
  • 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:5168
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C9C0ED9F0D4596791EFC8B525610E391 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5756
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6388
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:7056

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e590ac5.rbs

          • Path C:\Config.Msi\e590ac5.rbs
          • Size 21KB
          • SHA256 a00a6f5b05d1dee3d311dbdae805cc700fdc04c936088846f19ca06f07831377
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.exe

          • Path C:\Program Files\jjsploit\jjsploit.exe
          • Size 17.6MB
          • SHA256 75c45301f7a6632b67934cd30bb08d4c322c55b9e68d2a6edbc5873982cbcbe8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.lnk

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk
          • Size 1KB
          • SHA256 17e78ca388599181b9cf52e5a1371bf422d5760ea47603163cb57a0e0f71d449
          • MD5 SHA1 SHA512 TLSH

          jjsploit.lnk~RFe59114c.TMP

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk~RFe59114c.TMP
          • Size 1KB
          • SHA256 1bcf3586d18eb9d2c6ccd279661806dff5180a1ab876db61f39ee2ce3cb93d4e
          • MD5 SHA1 SHA512 TLSH

          MSIC1F3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC1F3.tmp
          • Size 132KB
          • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e590ac4.msi

          • Path C:\Windows\Installer\e590ac4.msi
          • Size 6.0MB
          • SHA256 d60041d15a1294a6fb436d20bff8e2cfaffd6b61aeddd504aadd1a35dc7f5ddd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 b991902aa2aa93979707a36c276b17b11a89df0a967a9743d4262856a0fa5a03
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {913ab88e-3016-41b6-a059-b8b995bea9a6}_OnDiskSnapshotProp

          • Path \??\Volume{4ba3fe8d-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{913ab88e-3016-41b6-a059-b8b995bea9a6}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 bdc150708fdf39594eb70a56e4d79b304fcf54e4df2a15731a9e36c58cb21ac8
          • MD5 SHA1 SHA512 SSDEEP TLSH