Overview

overview

8

Static

static

3

Graillon-FREE-2.8.zip

windows10-2004-x64

1

Graillon-FREE-2.8.zip

windows11-ltsc_2024-x64

1

Graillon-F...de.pdf

windows10-2004-x64

3

Graillon-F...de.pdf

windows11-ltsc_2024-x64

3

Graillon-F...et.pdf

windows10-2004-x64

3

Graillon-F...et.pdf

windows11-ltsc_2024-x64

3

Graillon-F...on2.so

ubuntu-18.04-amd64

1

Graillon-F...st.ttl

windows10-2004-x64

3

Graillon-F...st.ttl

windows11-ltsc_2024-x64

3

Graillon-F...n 2.so

ubuntu-18.04-amd64

1

Graillon-F...n 2.so

ubuntu-18.04-amd64

1

Graillon-F....0.pkg

macos-10.15-amd64

4

Graillon-F....0.exe

windows10-2004-x64

4

Graillon-F....0.exe

windows11-ltsc_2024-x64

6

$PLUGINSDI...er.bmp

windows10-2004-x64

1

$PLUGINSDI...er.bmp

windows11-ltsc_2024-x64

1

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

8

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

$PROGRAMFI...ry.tfx

windows10-2004-x64

3

$PROGRAMFI...ry.tfx

windows11-ltsc_2024-x64

3

Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 03:04

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General

  • Target
    Graillon-FREE-2.8/Windows/Graillon-2-FREE-2.8.0.exe
  • Size 9.4MB
  • Sample260620-dkl9daes4w
  • SHA256 b17c4d698a7ff93edbe0512bbf180c896e3ff96c6be8495d3b08dfa1d5c1cf8d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwarediscoverypersistenceransomwarespyware

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
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • 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 Program Files directory 37 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Graillon-FREE-2.8\Windows\Graillon-2-FREE-2.8.0.exe
    "C:\Users\Admin\AppData\Local\Temp\Graillon-FREE-2.8\Windows\Graillon-2-FREE-2.8.0.exe"
    1⤵
    • Drops file in Program Files directory
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    PID:2044
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1368
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4200
  • 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:4680

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        prep_Activatable Class_Hermes_perf.cache
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 595B
        • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsjFF9A.tmp\System.dll
        • Size 12KB
        • SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1368-233-0x000000000DEE0000-0x000000000E75B000-memory.dmp
        Download

        memory/4200-108-0x0000023F94210000-0x0000023F94230000-memory.dmp
        Download

        memory/4200-92-0x0000023F83E10000-0x0000023F83E30000-memory.dmp
        Download

        memory/4200-52-0x0000023F801E0000-0x0000023F802E0000-memory.dmp
        Download

        memory/4200-73-0x0000023F83A10000-0x0000023F83A30000-memory.dmp
        Download

        memory/4200-75-0x0000023F93E90000-0x0000023F93F90000-memory.dmp
        Download

        memory/4680-234-0x0000019B00980000-0x0000019B00C3C000-memory.dmp
        Download

        memory/4680-251-0x0000019B00980000-0x0000019B00C3C000-memory.dmp
        Download