Overview

overview

10

Static

static

3

tmp5u5v3k6c.exe

windows10-2004-x64

10

tmp5u5v3k6c.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    20/05/2026, 04:30

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General

  • Target
    tmp5u5v3k6c.exe
  • Size 356KB
  • Sample260520-e5bttaaw5k
  • SHA256 1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycryptolockerpersistenceransomware

Malware Config

Signatures

  • Family: CryptoLocker

    Ransomware family with multiple variants.

    ransomwarecryptolocker
  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    discovery
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp5u5v3k6c.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp5u5v3k6c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:960
    • 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\tmp5u5v3k6c.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3440
      • 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:3652
  • 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:4528

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        {34184A33-0407-212E-3320-09040709E2C2}.exe
        • Path C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
        • Size 356KB
        • SHA256 1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808
        • MD5 SHA1 SHA512 SSDEEP TLSH
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