Analysis

  • max time kernel
    117s
  • 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
    27/05/2026, 14:00

General

  • Target
    2026-05-27_0f4b97141ecf62a90d31a403c19f88f7_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
  • Size 1.9MB
  • Sample260527-rbfbcsft7n
  • SHA256 1adad17bf0e5e4f1a0dff6f9c4ca15fa410f9270adea398358bbf632969abcfe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    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
  • 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\2026-05-27_0f4b97141ecf62a90d31a403c19f88f7_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-27_0f4b97141ecf62a90d31a403c19f88f7_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:6008
  • 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:2300

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        patcher.exe

        • Path C:\905c0769f9a06c95a24ddf945\patcher.exe
        • Size 1.9MB
        • SHA256 1adad17bf0e5e4f1a0dff6f9c4ca15fa410f9270adea398358bbf632969abcfe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DisabledGoogleUpdate.exe$

        • Path C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe$
        • Size 2.4MB
        • SHA256 7b4346f3db3eedd165c39bd31e86dbf3d1fc5f301f80eb72212b8cede906595f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe$

        • Path C:\Program Files\7-Zip\7z.exe$
        • Size 2.5MB
        • SHA256 370605abe9f70c482e9481226ae0c08bdf55b763c3e3f92279e612530603da14
        • 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 2.0MB
        • SHA256 31a082c861b51837c721df296b795146918a65d66da31fc40ad86b7864f43917
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python.exe$

        • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\python.exe$
        • Size 2.2MB
        • SHA256 527ff45e46b4bc016182c7d69a07c5a1dad8b8aee735ec3b4cee1cdfa347ab47
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2300-7-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/2300-71-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/6008-0-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/6008-70-0x0000000000400000-0x000000000040F000-memory.dmp