Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/08/2026, 19:59

General

  • Target
    2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe
  • Size 48KB
  • Sample260807-yqrfhasfmb
  • SHA256 e2d402f87ae5f0bcae4575a8ef3e7b817e60f0501bb63d2ed3406c5e04dd9608
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4620

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 48KB
        • SHA256 8385c0fdac60036842da61bdb25c3e36080acb153a91501082c551afb1b29c59
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4340-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4340-1-0x0000000000590000-0x0000000000596000-memory.dmp

        memory/4340-2-0x0000000000590000-0x0000000000596000-memory.dmp

        memory/4340-3-0x00000000006B0000-0x00000000006B6000-memory.dmp

        memory/4340-19-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4620-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4620-21-0x00000000005C0000-0x00000000005C6000-memory.dmp

        memory/4620-27-0x0000000000500000-0x000000000050F000-memory.dmp