Overview

overview

10

Static

static

3

CryptoLocker.exe

windows7-x64

10

CryptoLocker.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 12:06

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General

  • Target

    CryptoLocker.exe

  • Size

    338KB

  • MD5

    04fb36199787f2e3e2135611a38321eb

  • SHA1

    65559245709fe98052eb284577f1fd61c01ad20d

  • SHA256

    d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

  • SHA512

    533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444

  • SSDEEP

    6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv

Score
10/10
cryptolockerdiscoverypersistenceransomware

Malware Config

Signatures

  • CryptoLocker

    Ransomware family with multiple variants.

    ransomwarecryptolocker
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe
    "C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2540
    • 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\CryptoLocker.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
        "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w000000C8
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    Filesize

    338KB

    MD5

    04fb36199787f2e3e2135611a38321eb

    SHA1

    65559245709fe98052eb284577f1fd61c01ad20d

    SHA256

    d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

    SHA512

    533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444

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