Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/09/2024, 13:25

General

  • Target

    2024-09-12_65d5f717ef00f337604d6a0bc71d6a58_cryptolocker.exe

  • Size

    45KB

  • MD5

    65d5f717ef00f337604d6a0bc71d6a58

  • SHA1

    6c076552bfaaeeccc100c079b1bbc6d4abe93de2

  • SHA256

    0442607674153523e0b893d2e898d2773752058ccdb335b12b652bba4a55267d

  • SHA512

    4b45c14d1995390d61b8f6bb0fcf7506e7d8fa4b12c00d6cc85ac6a9bd05c81a6cf9c3187fd6b4d5e065dd80439023859e25151ee2c76e5967e2e7b632cf9787

  • SSDEEP

    384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8sV:bm74zYcgT/EkM0ryfjPdQZsV

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-12_65d5f717ef00f337604d6a0bc71d6a58_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-12_65d5f717ef00f337604d6a0bc71d6a58_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\hasfj.exe

    Filesize

    46KB

    MD5

    4cbc613822a0656efde3b1ac91a834ca

    SHA1

    14c197206618b8f74752df11bce118d59cfe2f0b

    SHA256

    0406f2bcecf034d413af0d1e6141a42ab7ce038e6bd91fa2c632ea05eea2a3be

    SHA512

    833b7c552098945ca7cbdeaa537105e528fc67b4c2c9be627789b0cfd4ae645cb62c0275115ff893967c44322797ea8f253faa5cb33457bab1ff690947afbcbb

  • memory/1244-0-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/1244-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

    Filesize

    24KB

  • memory/1244-2-0x0000000002E90000-0x0000000002E96000-memory.dmp

    Filesize

    24KB

  • memory/1244-3-0x0000000003140000-0x0000000003146000-memory.dmp

    Filesize

    24KB

  • memory/1244-17-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/5008-25-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB

  • memory/5008-19-0x0000000002580000-0x0000000002586000-memory.dmp

    Filesize

    24KB

  • memory/5008-26-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB