Analysis

  • max time kernel
    60s
  • max time network
    67s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 18:00

General

  • Target
    CryptoWall.exe
  • Size 132KB
  • Sample260815-wlaaba1dng
  • SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates a file in the Startup directory 1 TTPs 1 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 TTPs 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CryptoWall.exe
    "C:\Users\Admin\AppData\Local\Temp\CryptoWall.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5940
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\syswow64\explorer.exe"
      2⤵
      • Creates a file in the Startup directory
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Windows\SysWOW64\svchost.exe
        -k netsvcs
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5588
  • C:\fe06c223\fe06c223.exe
    C:\fe06c223\fe06c223.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2456
  • C:\Users\Admin\AppData\Roaming\fe06c223.exe
    C:\Users\Admin\AppData\Roaming\fe06c223.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3428

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        fe06c223.exe

        • Path C:\fe06c223\fe06c223.exe
        • Size 132KB
        • SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4932-0-0x0000000000720000-0x0000000000745000-memory.dmp

        memory/4932-1-0x0000000000720000-0x0000000000745000-memory.dmp

        memory/5588-5-0x0000000000F30000-0x0000000000F55000-memory.dmp

        memory/5588-7-0x0000000000F30000-0x0000000000F55000-memory.dmp

        memory/5588-12-0x0000000000F30000-0x0000000000F55000-memory.dmp