Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:41

General

  • Target

    2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe

  • Size

    46KB

  • MD5

    ff91899f15cdcd3c00c984e990d061e2

  • SHA1

    e8170e9d845d7a4bf03b838a7c0825a5fd648a91

  • SHA256

    0e8687c5d6ae9f7476a60eff240b16bc735566f9128b5a0193aaa732c647f3df

  • SHA512

    a468cdc311b2e12fc8125622c1548975ef605b1cb9757cba6cd6a72d19e0603be2df3e8d022dd858c4b48a50bdb5cf04e6278eb6e74960e5b0095f16568a5260

  • SSDEEP

    384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUknqS:bm74zYcgT/EkM0ryfjdnqS

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\2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2580
    • 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:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    d5487a518e98ae10e310ce089cf956c2

    SHA1

    b52d985c4a7c7efce8929159097c189d3740226c

    SHA256

    c9da7a5a591a6c10b94cbf568ccb88bb54ae4311284ff34656aa34ed85695c72

    SHA512

    de5c6e38392dfab17f88b9db524ba83e0b0b09a46ce0877b6c00a59bba4b435b4d46a13efb75646c2a1d9bb85d869dd1922707fe9d2c8bc9f0f915c967bbdd0d

  • memory/2580-0-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/2580-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/2580-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/2580-3-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB

  • memory/2580-17-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/2684-20-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/2684-19-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB

  • memory/2684-26-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB