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Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/06/2024, 04:37

General

  • Target

    2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe

  • Size

    48KB

  • MD5

    4dc90cd97918cf06c09a3af83050bb7a

  • SHA1

    58a8068d45a3111f724f9c5b4d69f8f3a13befa7

  • SHA256

    6eae95c6b6a21a39035e2816b40778610ca8d1c747a6af97935ea95408d6c2c0

  • SHA512

    d502b0f20c21dfeba9f1311f318fdf0a273ae9cd48b7cf8a4a89980fe265b71d03399819c784bcfa8674da9dac9ead0fc3533719d4140b21860029018bd52414

  • SSDEEP

    768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPck:P6QFElP6k+MRQMOtEvwDpjBQpVXE

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    48KB

    MD5

    d0e8503e60472c12f437f1748a15252b

    SHA1

    14870b994c6f7262f8bfc0bf58df4623d805387e

    SHA256

    a5c65e58d6645da5912c51ed6e64d52083c0015fcf1fa9a714582d79b0d9a447

    SHA512

    858819c3417f70c2b00e7070adf2194e569133006a05ec967e2b28443f14601f88377ec10ea6c4ae631c0f8e3943826e652e93b24a42794d0eb7aa0278eaafd1

  • memory/396-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/396-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/396-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/396-27-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3452-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3452-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3452-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/3452-9-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3452-18-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB