Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    11/05/2026, 22:53

General

  • Target
    tmprl1muxcx.exe
  • Size 338KB
  • Sample260511-2ty7asbt9z
  • SHA256 48658345a687ee209e1c91ddb669ca09474de441232b4b538d611e4544169dcd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: CryptoLocker

    Ransomware family with multiple variants.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmprl1muxcx.exe
    "C:\Users\Admin\AppData\Local\Temp\tmprl1muxcx.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
      "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" "/rC:\Users\Admin\AppData\Local\Temp\tmprl1muxcx.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
        "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w00000234
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3460
  • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1568

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        {34184A33-0407-212E-3320-09040709E2C2}.exe

        • Path C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
        • Size 338KB
        • SHA256 48658345a687ee209e1c91ddb669ca09474de441232b4b538d611e4544169dcd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1568-12-0x00000000032D0000-0x00000000033AA000-memory.dmp

        memory/3256-0-0x0000000000150000-0x00000000001A7000-memory.dmp

        memory/3256-6-0x0000000002D70000-0x0000000002E4A000-memory.dmp

        memory/3384-7-0x00000000005D0000-0x0000000000627000-memory.dmp

        memory/3384-13-0x0000000003730000-0x000000000380A000-memory.dmp

        memory/3460-14-0x0000000002B10000-0x0000000002BEA000-memory.dmp