Analysis

  • max time kernel
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/05/2026, 12:43

General

  • Target
    2026-05-29_c7a6a13bb9c821e22573bbc306b03e2b_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 2.0MB
  • Sample260529-pyachsby4x
  • SHA256 0017b0a103029924583571a6a57201334cf4889cb2b061128dc99a899be87e4f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detects executables packed with ASPack 11 IoCs
  • ASPack v2.12-2.42 7 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • 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.

  • 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\2026-05-29_c7a6a13bb9c821e22573bbc306b03e2b_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-29_c7a6a13bb9c821e22573bbc306b03e2b_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:4440
  • 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:4896

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 2.0MB
        • SHA256 0017b0a103029924583571a6a57201334cf4889cb2b061128dc99a899be87e4f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RdrServicesUpdater.exe$

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe$
        • Size 2.7MB
        • SHA256 a638777438520f5f643ffb7cd555748101e7b312f8fcc9710f1ea88c19ec0cc2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 2.5MB
        • SHA256 60128bafa86ea0fc79eb8ae02b4c0502691d991f315a45cef4b68b0afb058627
        • MD5 SHA1 SHA512 SSDEEP TLSH

        appletviewer.exe$

        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe$
        • Size 2.0MB
        • SHA256 c31a14052bb58add34e319da2ac09999449478be8a00dc019586ac87cd91315e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        crashreporter.exe$

        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe$
        • Size 2.0MB
        • SHA256 3d466a91cbd2a55527d4df1cef46c70970b889e8ac6a36e135cc9b3d8cf8cf42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        integrator.exe$

        • Path C:\ProgramData\Microsoft\ClickToRun\{9AC08E99-230B-47e8-9721-4577B7F124EA}\integrator.exe$
        • Size 2.4MB
        • SHA256 a4868e963dfc4644919e600c0acba24d1262bbd236608e6fbd2fa9055b886e96
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wt.exe$

        • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.WindowsTerminal_8wekyb3d8bbwe\wt.exe$
        • Size 2.2MB
        • SHA256 fca9dd261b640c6b5178cb067356af79c6f9368e7f665301879f9440a9f03fa5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4440-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4440-70-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4896-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4896-71-0x0000000000400000-0x000000000040F000-memory.dmp