Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/06/2026, 23:33

General

  • Target
    2026-06-28_2f46f5688188184d8659d7e0acfa5552_akira_alphv_blackcat_elex_glassworm.exe
  • Size 2.9MB
  • Sample260628-3j3bmsgv9z
  • SHA256 ed3eb4d9b6e609b06f71bbbee3a3bab1fe68920276b15e0e128e080f8294d049
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • blackcat

Credentials
  • Username

    Administrator

  • Password

    Vivit5on0640

Credentials
  • Username

    Administrator@FAIRWAY

  • Password

    Vivit5on0640

Credentials
  • Username

    admin

  • Password

    Onegl@ss2020

Credentials
Attributes
  • enable_network_discovery

    true

  • enable_self_propagation

    true

  • enable_set_wallpaper

    true

  • extension

    hat2gck

  • note_file_name

    RECOVER-${EXTENSION}-FILES.txt

  • note_full_text

    ----Welcome to the Black Cat Ransomware----- Failure to contact us, will result in higher costs at every level for you. And all you / your customers files. >> What happened? Important files on your network was ENCRYPTED and now they have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your network was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: -Customers financial info -Your financial info with LLoyds and any other banks. -Invoices. -All the emails database - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. >> CAUTION DO NOT MODIFY ENCRYPTED FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >> What should I do next? 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://cmzh4nkisvkvyxc6o25ympbq52xphnexikkto5fyx52saaaxfv7piuyd.onion/?access-key=${ACCESS_KEY}

rsa_pubkey.plain

Signatures

  • Family: BlackCat

    A Rust-based ransomware sold as RaaS first seen in late 2021.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects command variations typically used by ransomware 1 IoCs
  • Detects executables containing commands for clearing Windows Event Logs 1 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 1 IoCs
  • 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.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Program crash 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 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 41 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.

  • Uses Volume Shadow Copy WMI provider

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

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-28_2f46f5688188184d8659d7e0acfa5552_akira_alphv_blackcat_elex_glassworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-28_2f46f5688188184d8659d7e0acfa5552_akira_alphv_blackcat_elex_glassworm.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 584
      2⤵
      • Program crash
      PID:4384
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2016 -ip 2016
    1⤵
      PID:2972
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4460
      • 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:3580
    • 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:4952
    • 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:1384

    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 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH

          memory/2016-0-0x0000000000400000-0x00000000006E2000-memory.dmp

          memory/3580-173-0x000000000E7F0000-0x000000000E8BC000-memory.dmp

          memory/4952-4-0x000001AA2BDA0000-0x000001AA2BEA0000-memory.dmp

          memory/4952-18-0x000001AA13A20000-0x000001AA13B20000-memory.dmp

          memory/4952-24-0x000001AA039C0000-0x000001AA039E0000-memory.dmp

          memory/4952-17-0x000001AA00FE0000-0x000001AA01000000-memory.dmp

          memory/4952-3-0x000001AA2BDA0000-0x000001AA2BEA0000-memory.dmp

          memory/4952-32-0x000001AA13E80000-0x000001AA13EA0000-memory.dmp