Analysis

  • max time kernel
    110s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/05/2026, 10:07

General

  • Target
    2026-05-31_01f7d55dba0b379a839ab533bef79a46_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 1.4MB
  • Sample260531-l5qraset61
  • SHA256 cc43e3134f1603662f5c385a2663c1e5c05b63e6baf15dffad8abb8e265d48d9
  • 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\2026-05-31_01f7d55dba0b379a839ab533bef79a46_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-31_01f7d55dba0b379a839ab533bef79a46_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:1708
  • 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:2196

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 1.4MB
        • SHA256 cc43e3134f1603662f5c385a2663c1e5c05b63e6baf15dffad8abb8e265d48d9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RdrCEF.exe$

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe$
        • Size 2.1MB
        • SHA256 5da353d6b3619e61df262c48e1f817bbc655338cc6dea0aba48c53b0468262d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DisabledGoogleUpdate.exe$

        • Path C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe$
        • Size 1.9MB
        • SHA256 b8461b53db12a760eafb6cfdc3793b8406ca2bbd81eb1d920c2169ae4a66169c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 1.9MB
        • SHA256 91a67c2595a311e39844a5af33c4717f59784c8fafe37f1066e7edfefc54c76f
        • 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 1.5MB
        • SHA256 6292a5d657b37db398e258bc537e8c879c0277bb61ad108184cca721ca5649b5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OneDriveStandaloneUpdater.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDriveStandaloneUpdater.exe
        • Size 1.6MB
        • SHA256 0144078fa331f10bca8d6fe07705e8003c3a2f6fff2037d0713ae4d364556ce2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1708-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1708-58-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/2196-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/2196-71-0x0000000000400000-0x000000000040F000-memory.dmp