Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    19/04/2026, 03:45

General

  • Target
    2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe
  • Size 43KB
  • Sample260419-ea4lcab16j
  • SHA256 cf147601f4462bbb59483d1cae03138b3c20c6a73182f68eeb2014f6086af494
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:688
    • 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:4948

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 43KB
        • SHA256 8ea659967c082228e32e8433441a56d7b13a857ac446f098a9ef1c2e8b37e2bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/688-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/688-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

        memory/688-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

        memory/688-3-0x0000000002200000-0x0000000002206000-memory.dmp

        memory/688-16-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/688-17-0x00000000008A0000-0x000000000091B000-memory.dmp

        memory/4948-20-0x00000000021C0000-0x00000000021C6000-memory.dmp

        memory/4948-26-0x0000000002350000-0x0000000002356000-memory.dmp

        memory/4948-27-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4948-29-0x0000000000880000-0x00000000008FB000-memory.dmp