Overview

overview

8

Static

static

3

s-tool_ins...4].rar

windows10-2004-x64

7

s-tool_ins...4].rar

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/06/2026, 11:04

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General

  • Target
    s-tool_install [2-16784].rar
  • Size 2.0MB
  • Sample260623-m6dnssct2w
  • SHA256 8a0a37457158447ba06e989148580c5a6618991c174b6ee1e25d730eaee06bcd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
discoveryransomware

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 2 IoCs
    ransomware
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 18 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\s-tool_install [2-16784].rar"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2532
  • C:\Users\Admin\Desktop\setup.exe
    "C:\Users\Admin\Desktop\setup.exe"
    1⤵
    • Drops startup file
    • Executes dropped EXE
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\WINDOWS\Setup1.exe
      C:\WINDOWS\Setup1.exe "C:\Users\Admin\Desktop\" "C:\WINDOWS\ST6UNST.000" "C:\WINDOWS\st6unst.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:872
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\SETUP.LST
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:4572
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4504
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme.txt
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:4388

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          COMDLG32.OCX
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\COMDLG32.OCX
          • Size 149KB
          • SHA256 e32d8bbe8e6985726742b496520fa47827f3b428648fa1bc34ecffdd9bdac240
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          FldWordList.dic
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\FldWordList.dic
          • Size 307B
          • SHA256 13b68e10f43dd8e7277d75ffaa2868195ab49e275880cd9a2db036aac404edaa
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          Langpack.eng
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\Langpack.eng
          • Size 2KB
          • SHA256 92f1c2a25b288a618205b653048d4bd963898855f644c879cb22a8d080a07f27
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          Langpack.rus
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\Langpack.rus
          • Size 2KB
          • SHA256 d92d7243d05fd6ba991b02f179726daa3f56558883fa2106d7d3e7ea292d80ae
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          MSCOMCTL.OCX
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\MSCOMCTL.OCX
          • Size 1.0MB
          • SHA256 bc58d624ceea02ab086f1cce809c992bf5a7105e88931853317a2f5aa5afd6e4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSINET.OCX
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\MSINET.OCX
          • Size 129KB
          • SHA256 e55627932120be87c7950383a75a5712b0ff2c00b8d18169195ad35bc2502fc2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          SQL-inj.exe
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\SQL-inj.exe
          • Size 136KB
          • SHA256 d8ea874e8194f8ecdde233603ec0b437656ec0eec98857486610a0070ca625d9
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          TblWordList.dic
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\TblWordList.dic
          • Size 273B
          • SHA256 1e186b67a342bf90dd9bcac715525729f23b4bbf39d6d8f722bf6463e28d9b82
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          VB6STKIT.DLL
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\VB6STKIT.DLL
          • Size 99KB
          • SHA256 df6e2f111773adec3b33dcb0b31e2a4d21ef7d51740706335f411e2c999c0e6b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          readme.txt
          • Path C:\Users\Admin\AppData\Local\Temp\msftqws.pdw\readme.txt
          • Size 508B
          • SHA256 310dc193be6f9595bbda4486813c0845b84563641d51c22f01626412cd9188cf
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          SQL-inj.CAB
          • Path C:\Users\Admin\Desktop\SQL-inj.CAB
          • Size 1.9MB
          • SHA256 1c0ba5e5a8a1490b2571928dc53c9e8a14d3b0dac3e3655d03050b510d9aa286
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          setup.exe
          • Path C:\Users\Admin\Desktop\setup.exe
          • Size 136KB
          • SHA256 3d0041832e8b6f5b95cb33d286c24c53ccc9341549589ae8822c6084e8d2aa5c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          setup.lst
          • Path C:\Users\Admin\Desktop\setup.lst
          • Size 4KB
          • SHA256 3a89cfba9dfb4568bd3c3ea8aa900225e9393c03db408cdac0e197341b369998
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ST6UNST.000
          • Path C:\WINDOWS\ST6UNST.000
          • Size 1KB
          • SHA256 1c46daed1dc57bfa0e042d38f35aadcd98810f9b5b74c9ab5fd069de471588a7
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          Setup1.exe
          • Path C:\WINDOWS\Setup1.exe
          • Size 244KB
          • SHA256 5b82b27da9bbaae1abc32095942c60017b275e002cbb2c0cb44580131f4789b4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ST6UNST.000
          • Path C:\Windows\ST6UNST.000
          • Size 1KB
          • SHA256 ba76859ab30d78add086b4606eb14836984881c6525d08475cc21fdb7558dbac
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ST6UNST.000
          • Path C:\Windows\ST6UNST.000
          • Size 3KB
          • SHA256 9e10221f72cde56fa8d55292d56fb08d250cea9c33dd5043d5aa0834cc3432e5
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ST6UNST.000
          • Path C:\Windows\ST6UNST.000
          • Size 1KB
          • SHA256 81fbc669dd3f35711a711575d2922b6793f8cb70af4aca28da14d9109906cce2
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ST6UNST.EXE
          • Path C:\Windows\ST6UNST.EXE
          • Size 71KB
          • SHA256 dafb5d89135fa565080c9c6beafbdeb7611089e946a520001a7ef02facb002d3
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download