Resubmissions

01/07/2026, 01:04

260701-be78jsby4j7

10/02/2026, 00:01

260210-aa7ksafw4e7

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/02/2026, 00:01

General

  • Target
    jjsploit_8.17.6_x64_en-US.msi
  • Size 6.1MB
  • Sample260210-aa7ksafw4e
  • SHA256 a8a547cf25bc242a551238e557e24b4edb9af153ec27da2830e096e3c064dc43
  • 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 10 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 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_8.17.6_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:4116
  • 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 WriteProcessMemory
    PID:3404
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C72CAD8F9D1410ED36A5590CAD7AE4B6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:5888
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3584
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2096

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e591eca.rbs

          • Path C:\Config.Msi\e591eca.rbs
          • Size 21KB
          • SHA256 f1d72efff5077688162b06d79b402ea96eb3ec66e19ac7a3df336d1699689ff3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.exe

          • Path C:\Program Files\jjsploit\jjsploit.exe
          • Size 17.8MB
          • SHA256 324e940b37f08ba22399e9bddf5fb500ff2391e46317c1439b71d07ecabd419c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jjsploit.lnk

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk
          • Size 1KB
          • SHA256 13f0f95548e0c860545bb999ae4b9bac4c2a29c835cf21ea9b139727e4050d7a
          • MD5 SHA1 SHA512 TLSH

          jjsploit.lnk~RFe592958.TMP

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\jjsploit\jjsploit.lnk~RFe592958.TMP
          • Size 1KB
          • SHA256 5bda02c2fa976b9a6a116a99b6d630881f88f3fb2d50e67632554499e0d538f3
          • MD5 SHA1 SHA512 TLSH

          MSI41A8.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41A8.tmp
          • Size 132KB
          • SHA256 7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e591ec9.msi

          • Path C:\Windows\Installer\e591ec9.msi
          • Size 6.1MB
          • SHA256 a8a547cf25bc242a551238e557e24b4edb9af153ec27da2830e096e3c064dc43
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 e3f4cd58febd7bc5ef7d61eb3db2588b4eee6c89a761a6e192f2edf418c19a62
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {a822bbc6-2c8f-4526-8151-402629025f31}_OnDiskSnapshotProp

          • Path \??\Volume{9925377d-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{a822bbc6-2c8f-4526-8151-402629025f31}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 f22c943390c796d3542971bfa07b77575a0f4b100df78cac913f1771d1b7becf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5888-4-0x0000000002780000-0x00000000027DF000-memory.dmp