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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2024, 19:26

General

  • Target

    2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe

  • Size

    49KB

  • MD5

    4141d21b9e4096dfa912fd45f355c7e1

  • SHA1

    85fc121d0075fefede08c1ecaea2dd861a725d19

  • SHA256

    14df634e3e23a37b6dfd6c035a41d0a3a78f30e16b220c353406ab043c46119f

  • SHA512

    afa379459a46412b840ed69ada45eaec53d95a6d6d73ec19c7963fb267e68bbaf4c13c6ebce0e14862014b40cf5523ec75c5064a29752077f24337b4518712da

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSz8:bgGYcA/53GAA6y37Q6dI+d5b8

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\2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    d701c28a3f9e7d6e1b2ac918797271ff

    SHA1

    0d86b20d8bfacee32b50c2e8677f7ccbfe04165e

    SHA256

    3b684e8b8c586ae10c34bd24fbfb6f7d0964fceb0db8803925d859881e10c796

    SHA512

    b9476a69e104c1457f57acd16b441190d0fca63d56f5ac42c44bb7f0eb224610d56dde643228afd847e5e739da01487409eef80c0e103d4fe5201be771c902ff

  • memory/2740-0-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/2740-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

    Filesize

    24KB

  • memory/2740-8-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/2944-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2944-22-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB