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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    23/04/2024, 00:55

General

  • Target

    2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe

  • Size

    44KB

  • MD5

    8be8e873910b1c0a9dac6f267fcbc057

  • SHA1

    99ef8b4a025439a9864c3ff52a5546f9e26ff80e

  • SHA256

    f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005

  • SHA512

    dfdea49d20ec348a4e2b36a3ecac31db71f9a484549db732e71435ac00c5bb66a4ff9878499ab5501ffe46ce3af85973935a50f60b99b4c30850bb99bc0a305e

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNN:bgGYcA/53GADw8Cl/w

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    3566f1013139845d563a4c3795bd1550

    SHA1

    ab13d6161b3d48904affeba469e26c927b0f79bf

    SHA256

    f7bfda86d0ca4f32cd2c32f336317de43ef6de8a801281ce7ea52984288f64e5

    SHA512

    9420e2c5bfc9dad9b8ebb5a70c5b2ecacc1618e1bd9152b87591629597ef784e277b9c9dc337270744f41ad93d8ab441d7f1c6afafe6af79835815ce35463360

  • memory/1680-0-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/1680-1-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/1680-8-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/1956-15-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB

  • memory/1956-22-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB