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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/02/2024, 22:00

General

  • Target

    2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe

  • Size

    125KB

  • MD5

    d9bacd11d833a5fca4bc808635ececf5

  • SHA1

    3ae46020e34f5b984fc695b29df1555c0764d3fd

  • SHA256

    f4e5e13e0721f554e3e4b053d5019cbf94993cf623d77ba1c4a3f8eb293c6510

  • SHA512

    b3cf40582bf83585cd43dfc5574dff50493272e895093f10d7880deb23e7e7e783b9dd68b12a676481abb110855fafc66478112bcfa16f6ab926fd801ffe5e18

  • SSDEEP

    1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpG:vCA9OtEvwDpji

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    126KB

    MD5

    fe0e8ab5dc8d82980199739585df589c

    SHA1

    344a82b1518a6e785a6c9d7cd37507688924be25

    SHA256

    324662e78dbce6bb06dad3ae8ba59c5787b8d9ecedab2a5b678c3487c0090c88

    SHA512

    7b133ad814a27996e976fc8577e4cf84cf43f670f7b5b290614f9c747cac003314a04383f3899ca13a429f0f0c688fb55fbb820a8b8c6913950521e8f41ce61b

  • memory/1484-0-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1484-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1484-2-0x0000000000540000-0x0000000000546000-memory.dmp

    Filesize

    24KB

  • memory/4244-17-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/4244-20-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB