Overview

overview

10

Static

static

10

file.exe

windows10-2004-x64

9

file.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 02:10

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General

  • Target
    file.exe
  • Size 145KB
  • Sample260722-cl33vatyht
  • SHA256 47f8790c9b5b9aab6ae179a192a91d4a5b4e6aac17c14f103858fa3b72ceba25
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (572) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 24 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    defense_evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      • Checks SCSI registry key(s)
      PID:1532
    • C:\ProgramData\8535.tmp
      "C:\ProgramData\8535.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4572
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\8535.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3308
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:5460
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{2F51073E-B49A-4ADD-AD2D-F368F9CC9688}.xps" 134291598558230000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:5768

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          OOOOOOOOOOO
          • Path C:\$Recycle.Bin\S-1-5-21-1738198120-2966725515-3980530802-1000\OOOOOOOOOOO
          • Size 129B
          • SHA256 27745bc0061989b65d2a01b7ab55d8baba35a0c6b855e80c0d77c0396d4a90ae
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          8535.tmp
          • Path C:\ProgramData\8535.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          DDDDDDDD
          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDD
          • Size 145KB
          • SHA256 0bbec0550bcfb673353073ee86c116021e48565476c9a5318a53120eee280475
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 876d13262e6f3250f51505a41b992dd8ecb6479bb7e89c596204a68d57724a22
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          o7k3OQSE9.README.txt
          • Path C:\o7k3OQSE9.README.txt
          • Size 324B
          • SHA256 8e35fcb5e6e7e3741eb30839a7cd87e0d8163a39fb8bc26fec5937e97aac8ec6
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-1738198120-2966725515-3980530802-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 d5cf7431ee09c2e6f1a2d78a9385857d6f55f9624fe44ac943cdcb7ca960f7aa
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/4416-2-0x0000000002CF0000-0x0000000002D00000-memory.dmp
          Download

          memory/4416-1-0x0000000002CF0000-0x0000000002D00000-memory.dmp
          Download

          memory/4416-1021-0x0000000002CF0000-0x0000000002D00000-memory.dmp
          Download

          memory/4416-0-0x0000000002CF0000-0x0000000002D00000-memory.dmp
          Download

          memory/5768-1032-0x00007FFB5C7C0000-0x00007FFB5C7D0000-memory.dmp
          Download

          memory/5768-1038-0x00007FFB5C7C0000-0x00007FFB5C7D0000-memory.dmp
          Download

          memory/5768-1039-0x00007FFB5C7C0000-0x00007FFB5C7D0000-memory.dmp
          Download

          memory/5768-1031-0x00007FFB5C7C0000-0x00007FFB5C7D0000-memory.dmp
          Download

          memory/5768-1067-0x00007FFB5A300000-0x00007FFB5A310000-memory.dmp
          Download

          memory/5768-1068-0x00007FFB5A300000-0x00007FFB5A310000-memory.dmp
          Download

          memory/5768-1030-0x00007FFB5C7C0000-0x00007FFB5C7D0000-memory.dmp
          Download