Analysis

  • max time kernel
    90s
  • max time network
    97s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    19/05/2026, 14:06

General

  • Target
    2026-05-19_01fdd4b28f7ca870f0fcc9dfc7990d51_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 1.1MB
  • Sample260519-reg95agy4n
  • SHA256 9eb716bb3f3eb00190a83116503fdc69a5c2c68ef0957e8dd9e7b97ba8b7ea5b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detects executables packed with ASPack 7 IoCs
  • ASPack v2.12-2.42 4 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\2026-05-19_01fdd4b28f7ca870f0fcc9dfc7990d51_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-19_01fdd4b28f7ca870f0fcc9dfc7990d51_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:4796
  • 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:3436

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe$

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe$
        • Size 1.1MB
        • SHA256 9eb716bb3f3eb00190a83116503fdc69a5c2c68ef0957e8dd9e7b97ba8b7ea5b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RdrServicesUpdater.exe$

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe$
        • Size 1.8MB
        • SHA256 ac40fbb37715d3dc8bf04674da3e5388534ea764b09efa6da02b8a528e1986ee
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msedge_proxy.exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\msedge_proxy.exe
        • Size 1.2MB
        • SHA256 9a90e5e713ed99d20efcd6276455ef673ce4be60bc90d496c285b5928069ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        misc.exe$

        • Path C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0409-1000-0000000FF1CE}\misc.exe$
        • Size 1.2MB
        • SHA256 7f8e29ada1eddb786362f37bf65a573d3da63d66edfe23d8bf83ebea2617fc2d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3436-76-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4796-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4796-75-0x0000000000400000-0x000000000040F000-memory.dmp