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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 21:26

General

  • Target

    2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe

  • Size

    33KB

  • MD5

    1ead185e1c0b1e9a65cbeb09d095851e

  • SHA1

    bc3173c2af14c7269b40999b904536dd9ef36612

  • SHA256

    192e966ed9a7ee75a0c907bdb226d78436516d9768eed631ee2f15a51372255e

  • SHA512

    3a4c675eecd938fd73c2e0defc0de60a87cd41cee7e0ef71bfc56f56a22e236d002b6f6e74ac708600fdf7f0f58ba884e82da51283ee2438c9671b6ab664dd33

  • SSDEEP

    384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvxwM:bG74zYcgT/Ekd0ryfjkmM

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    33KB

    MD5

    9616019c13c6cd64bf2538c5dc03f6ef

    SHA1

    8173b26fb7f559bccaaa2bc971c20ce85b2c6cc5

    SHA256

    fc05936b1ff6a249c573d8223e9619769b6f8765457f2b57e35347624e68ef4b

    SHA512

    4430e79c33646bf747bd03a10bc7b96d4641a3c46e8a5496f6f2ef71c64d69fce768e265f848c14ff07e45baac003c9647cac4c8de58dcd64541aadc6d2aeb1c

  • memory/1112-19-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/1112-25-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/1112-26-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2868-0-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2868-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/2868-2-0x0000000002110000-0x0000000002116000-memory.dmp

    Filesize

    24KB

  • memory/2868-9-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/2868-17-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB