Analysis

  • max time kernel
    83s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/05/2026, 16:54

General

  • Target
    2026-05-18_47ed3ae471f2d3ba6473adb5fae0ee43_amadey_cobalt-strike_elex_hijackloader_stealc_vidar_wannacry.exe
  • Size 2.4MB
  • Sample260518-vesyeahv9t
  • SHA256 2b82fba61d868d2724a3497ac17b08315290cac1dd9f224da54520a272c91bce
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detects executables packed with ASPack 12 IoCs
  • ASPack v2.12-2.42 8 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\2026-05-18_47ed3ae471f2d3ba6473adb5fae0ee43_amadey_cobalt-strike_elex_hijackloader_stealc_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-18_47ed3ae471f2d3ba6473adb5fae0ee43_amadey_cobalt-strike_elex_hijackloader_stealc_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:712
  • 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:5400

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 2.4MB
        • SHA256 2b82fba61d868d2724a3497ac17b08315290cac1dd9f224da54520a272c91bce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RdrCEF.exe$

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe$
        • Size 3.2MB
        • SHA256 44f458f2908de6e7b464c8bdc1187069287abfcb47c0b0903bb1d390824e506a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        notification_helper.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\notification_helper.exe
        • Size 2.6MB
        • SHA256 5a224ddb6c4f0c8e6389643e0fb1e5c6b73f587135855a9fa226d940e90fb280
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 3.0MB
        • SHA256 32a0f2eedbbd2f0e7aa2dfd23b3246c0ae64888a957c099784dd4ef9e09aef80
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pack200.exe

        • Path C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe
        • Size 2.5MB
        • SHA256 ccc07c89e9e38a8a8a0606884f228f71ac698607dfc15df472e21106cb14ac4f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EXCEL.EXE

        • Path C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE
        • Size 2.7MB
        • SHA256 9785e02a4b0a6954806defb11b00d6acc5c99b2807df776ba75a1ac836e491b6
        • 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 2.5MB
        • SHA256 990e404f952a5b78813e3efe68b860511d6e0ebd6a5020a67b9e53e7fef89146
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MicrosoftEdge.exe$

        • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\MicrosoftEdge.exe$
        • Size 2.7MB
        • SHA256 6d9c18dbb40dae3e493f83f2b1e583b0c1591ee2ad0c89c9615ec5470da32c7a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/712-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/712-70-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5400-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/5400-71-0x0000000000400000-0x000000000040F000-memory.dmp