Analysis

  • max time kernel
    113s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/05/2026, 12:24

General

  • Target
    2026-05-23_f16ab6db6a031608ef40e4cfb0dcb1df_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 1.4MB
  • Sample260523-plcbcact9y
  • SHA256 e375276fac98266d47f484052e0c41ee6aa7ea90e647dc121332fa28c4b90328
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects executables packed with ASPack 9 IoCs
  • ASPack v2.12-2.42 5 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\2026-05-23_f16ab6db6a031608ef40e4cfb0dcb1df_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-23_f16ab6db6a031608ef40e4cfb0dcb1df_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:4428
  • 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:2448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 1.4MB
        • SHA256 e375276fac98266d47f484052e0c41ee6aa7ea90e647dc121332fa28c4b90328
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RdrCEF.exe$

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe$
        • Size 2.2MB
        • SHA256 0278b8f848a22093efd1229025bc6b46f90b49c331867563b28585937cfeb0d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        identity_helper.exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
        • Size 1.6MB
        • SHA256 872f7e2a2d0b9104004d323d0b1be4dedc0296bfa228279099fb84566285a71c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 2.0MB
        • SHA256 080996afefe2b72e586b9e4eb6488f628f537e40bc10769fd2916fec7062249a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        misc.exe$

        • Path C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-040C-1000-0000000FF1CE}\misc.exe$
        • Size 1.5MB
        • SHA256 53d8f890da015dce1110d801f6cdb7b6a3f5e77316b08a3829a89ba0fc5caabb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2448-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/2448-71-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4428-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/4428-70-0x0000000000400000-0x000000000040F000-memory.dmp