Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/05/2026, 02:10

General

  • Target
    2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe
  • Size 81KB
  • Sample260505-clpv8aex5x
  • SHA256 52c07b3acb2913ff4b20ef7213509c827d1fa060aa4a68d4387d436945f90576
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • 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\2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1104
    • 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:4684

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 81KB
        • SHA256 03789bf16d5ab51942caa8e4708c3879221408467702e0ec62f435dc26e85001
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1104-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/1104-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/1104-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

        memory/1104-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/1104-4-0x00000000021F0000-0x00000000021F6000-memory.dmp

        memory/1104-18-0x0000000002BF0000-0x0000000002C6C000-memory.dmp

        memory/4684-19-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4684-21-0x0000000002170000-0x0000000002176000-memory.dmp

        memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4684-28-0x0000000002740000-0x00000000027BC000-memory.dmp

        memory/4684-34-0x0000000002740000-0x00000000027BC000-memory.dmp