Overview

overview

8

Static

static

3

viru.exe

windows10-ltsc_2021-x64

8

viru.exe

windows11-21h2-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    44s
  • max time network
    43s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/06/2026, 01:06

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General

  • Target
    viru.exe
  • Size 14.5MB
  • Sample260628-bgc57aex6l
  • SHA256 fec77449a527f0162085b0a29e205381f9e1d6f181fd52a9a5831e612eff5284
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
defense_evasionpersistenceransomware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Loads dropped DLL 10 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies Control Panel 5 IoCs
    defense_evasion
  • Modifies registry class 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of FindShellTrayWindow 60 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\viru.exe
    "C:\Users\Admin\AppData\Local\Temp\viru.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\viru.exe
      "C:\Users\Admin\AppData\Local\Temp\viru.exe"
      2⤵
      • Loads dropped DLL
      • Sets desktop wallpaper using registry
      • Modifies Control Panel
      • Suspicious use of WriteProcessMemory
      PID:4508
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /f /im explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1528
        • C:\Windows\system32\taskkill.exe
          taskkill /f /im explorer.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4036
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c start explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2596
        • C:\Windows\explorer.exe
          explorer.exe
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:3468
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3916
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2456

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        _imaging.cp311-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\PIL\_imaging.cp311-win_amd64.pyd
        • Size 2.5MB
        • SHA256 e04dfdb2bdba09efc4bee07924e7be18b0b324a890eae81a12509d54370d4621
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _imagingft.cp311-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\PIL\_imagingft.cp311-win_amd64.pyd
        • Size 2.1MB
        • SHA256 36de3f5dcf98e5d0a04c391fd6cc7ccee5cb807f6a4881e894c973ba085f8547
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _imagingmath.cp311-win_amd64.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\PIL\_imagingmath.cp311-win_amd64.pyd
        • Size 24KB
        • SHA256 947d15f95576d6a156ece0111a408818cfe00413c64a34ae89f5800dcd3aa590
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        VCRUNTIME140.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\VCRUNTIME140.dll
        • Size 116KB
        • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _bz2.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_bz2.pyd
        • Size 82KB
        • SHA256 00b8ca9a338d2b47285c9e56d6d893db2a999b47216756f18439997fb80a56e3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ctypes.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_ctypes.pyd
        • Size 121KB
        • SHA256 c148292328f0aab7863af82f54f613961e7cb95b7215f7a81cafaf45bd4c42b7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _decimal.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_decimal.pyd
        • Size 249KB
        • SHA256 980a63f2b39cf16910f44384398e25f24482346a482addb00de42555b17d4278
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _elementtree.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_elementtree.pyd
        • Size 125KB
        • SHA256 02e30b6a2bee5be5336e40a9c89575603051bde86f9c9cdc78b7fa7d9b7bd1f0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _hashlib.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_hashlib.pyd
        • Size 63KB
        • SHA256 87dd0c858620287454fd6d31d52b6a48eddbb2a08e09e8b2d9fdb0b92200d766
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _lzma.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_lzma.pyd
        • Size 155KB
        • SHA256 f5e01b516c2c23035f7703e23569dec26c5616c05a929b2580ae474a5c6722c5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _socket.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_socket.pyd
        • Size 77KB
        • SHA256 a19e3c7c03ef1b5625790b1c9c42594909311ab6df540fbf43c6aa93300ab166
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ssl.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\_ssl.pyd
        • Size 174KB
        • SHA256 ba5388d6a6557d431e086734a3323621dc447f63ba299b0a815e5837cf869678
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        base_library.zip
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\base_library.zip
        • Size 1.4MB
        • SHA256 f2fe16e30304e50d8c8bfb415074f2cbd4335059850c159025b72f638d93c414
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libcrypto-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\libcrypto-3.dll
        • Size 5.0MB
        • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libffi-8.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libssl-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\libssl-3.dll
        • Size 768KB
        • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pyexpat.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\pyexpat.pyd
        • Size 194KB
        • SHA256 c7c7564f7f874fb660a46384980a2cf28bc3e245ca83628a197ccf861eab5560
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python311.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\python311.dll
        • Size 5.5MB
        • SHA256 0817a2a657a24c0d5fbb60df56960f42fc66b3039d522ec952dab83e2d869364
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        select.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\select.pyd
        • Size 29KB
        • SHA256 bae0974390945520eb99ab32486c6a964691f8f4a028ac408d98fa8fb0db7d90
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        unicodedata.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI47122\unicodedata.pyd
        • Size 1.1MB
        • SHA256 37c68617fa02a2cadced17ef724e2d450ef12a8a37215da789a4679fde1c5c02
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/2456-60-0x000001196CCA0000-0x000001196E6A5000-memory.dmp
        Download

        memory/2456-65-0x000001216EAB0000-0x000001216EBB0000-memory.dmp
        Download

        memory/2456-73-0x000001216E6F0000-0x000001216E7F0000-memory.dmp
        Download

        memory/2456-115-0x0000012271B40000-0x0000012271B60000-memory.dmp
        Download

        memory/2456-116-0x0000012271B40000-0x0000012271B60000-memory.dmp
        Download

        memory/2456-130-0x0000012271DB0000-0x0000012271EB0000-memory.dmp
        Download

        memory/2456-207-0x0000012275D80000-0x0000012275E80000-memory.dmp
        Download