Analysis

  • max time kernel
    102s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    27/05/2026, 16:06

General

  • Target
    2026-05-27_fb6bbdbd15be31f982d85045b366368f_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 2.1MB
  • Sample260527-tkf1csbw6q
  • SHA256 67d5e0ced28499dafee4dd79ace6a77d9f97ba5ea71b56c4cf11d5b13ef600dd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detects executables packed with ASPack 10 IoCs
  • ASPack v2.12-2.42 6 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • 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.

  • NTFS ADS 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-27_fb6bbdbd15be31f982d85045b366368f_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-27_fb6bbdbd15be31f982d85045b366368f_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe"
    1⤵
    • Adds Run key to start application
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • NTFS ADS
    • Suspicious use of SetWindowsHookEx
    PID:5132
  • C:\905c0769f9a06c95a24ddf945\patcher.exe
    C:\905c0769f9a06c95a24ddf945\patcher.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:2412

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 2.1MB
        • SHA256 67d5e0ced28499dafee4dd79ace6a77d9f97ba5ea71b56c4cf11d5b13ef600dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        notification_helper.exe$

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\notification_helper.exe$
        • Size 2.2MB
        • SHA256 18159a86ce17cafc2ebda6355a52196d43184641235f715220b5b4987715809f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 2.6MB
        • SHA256 d00c0f2a331dee5ee683cf708d04679c336d6eb2207019a5cb559e7aa80393c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jabswitch.exe$

        • Path C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe$
        • Size 2.1MB
        • SHA256 948fa5e04e696654d12bcf193d1e18545db8d10c0be8be5f34d91791a565fd4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        misc.exe$

        • Path C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\misc.exe$
        • Size 2.2MB
        • SHA256 3a118fbaa166c14a1edf3506a93d956d8c7689b49fe694631e1d3465b68a9b34
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wt.exe$

        • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.WindowsTerminal_8wekyb3d8bbwe\wt.exe$
        • Size 2.3MB
        • SHA256 618cc770f42b94853f6f79c6000b569a38021e72a3381f76aa0e001ee2589b9b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2412-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/2412-71-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5132-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5132-58-0x0000000000400000-0x000000000040F000-memory.dmp