Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/05/2026, 09:27

General

  • Target
    2026-05-04_18b368b7d946e6db1477df23811f253d_coinminer_cryptolocker_elex.exe
  • Size 67KB
  • Sample260504-le461aa16j
  • SHA256 b166f143a610def941437241e623e15b630f0766abbefa4d5469d45bb1c18f67
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2026-05-04_18b368b7d946e6db1477df23811f253d_coinminer_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-04_18b368b7d946e6db1477df23811f253d_coinminer_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3632
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1020

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 68KB
        • SHA256 efae0b83927194aed67e6d166f2fe1684aab764b64110ad8f972874300243d22
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1020-20-0x00000000022D0000-0x00000000022D6000-memory.dmp

        memory/1020-21-0x00000000007C0000-0x00000000007C6000-memory.dmp

        memory/1020-27-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/1020-29-0x00000000007D0000-0x0000000000834000-memory.dmp

        memory/3632-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3632-1-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/3632-2-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/3632-3-0x0000000002170000-0x0000000002176000-memory.dmp

        memory/3632-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3632-18-0x00000000021D0000-0x0000000002234000-memory.dmp