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
    22/04/2026, 16:06

General

  • Target
    2026-04-22_a5dc933f2b5a7aa76076d0d15a95152e_coinminer_cryptolocker_elex.exe
  • Size 33KB
  • Sample260422-tkb2eaaz5m
  • SHA256 e0745ce48105db8794d6651cc9e39617994c2a5e4bf4dc34bee5e27d88ec3357
  • 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\2026-04-22_a5dc933f2b5a7aa76076d0d15a95152e_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-22_a5dc933f2b5a7aa76076d0d15a95152e_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4784
    • 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:4152

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 34KB
        • SHA256 b0f859854f6dc18b33b0e721dbb91fe94440ce4d80fc7039f294f074913f2403
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4152-20-0x0000000002320000-0x0000000002326000-memory.dmp

        memory/4152-26-0x0000000002480000-0x0000000002486000-memory.dmp

        memory/4152-27-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4152-29-0x0000000000880000-0x0000000000A2C000-memory.dmp

        memory/4784-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4784-2-0x0000000002490000-0x0000000002496000-memory.dmp

        memory/4784-1-0x0000000002490000-0x0000000002496000-memory.dmp

        memory/4784-4-0x0000000002390000-0x0000000002396000-memory.dmp

        memory/4784-17-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4784-18-0x0000000000880000-0x0000000000A2C000-memory.dmp