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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2024, 04:56

General

  • Target

    2024-03-28_d97ac71c448ae1a3e74ea03516c9cdb8_cryptolocker.exe

  • Size

    40KB

  • MD5

    d97ac71c448ae1a3e74ea03516c9cdb8

  • SHA1

    bc0060ea9b1a32646896b4cffffbe0a52c04cb15

  • SHA256

    ef8abe2b5c566deeed78b250af7bb0e8df12db85efb4cd175b4e651a41b0c8d7

  • SHA512

    eea231afe40c9364ca91b3df56c81562f2f18581ea769fa8423be82babb867ad006c10bf2bfe75fdaa57cc9bcca844f9e878aeb8cdaa582be5cf6a2364b4293d

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9RzhwaO4t:i5nkFGMOtEvwDpjR+TD

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-03-28_d97ac71c448ae1a3e74ea03516c9cdb8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-28_d97ac71c448ae1a3e74ea03516c9cdb8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    d44c5fb19d17def8213ec97396e5c1ec

    SHA1

    d71bb0c1ece6b70f9fe4f309d5758f9aeb60964d

    SHA256

    cb0ab1ad9786421bcbd3eb8b01ea712eeaca6c7acb457a2c1100467a1ffe56fa

    SHA512

    c37689f7153db06d96c4658d79808e0dfc311a128f262ab1c84c183c81ff8ba8593315c96f99369ddf27f542910e97baa25663ec16b5e1dd4e8b3d66b6ecf502

  • memory/1368-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1368-1-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1368-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/1368-4-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1368-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2584-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2584-20-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2584-18-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/2584-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB