Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 20:07

General

  • Target

    2024-06-01_89c54fa571ecb947b8467172770711ea_cryptolocker.exe

  • Size

    54KB

  • MD5

    89c54fa571ecb947b8467172770711ea

  • SHA1

    ab1a197d0ae0e0ade7a1536f962795bc1b011a91

  • SHA256

    14a0a102689c1893cb28d471edb8d023e1e58aa11fdd320fb494e8c13fa6234e

  • SHA512

    602a9bc97d65795227d2e7706e721625eb3fb4c861143ec3bd9d43b8496dbea64cf44b9948b019ed4e63b27f835fc86fba1932a15d92c8b7767cc3127d45873f

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EY:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7x

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-01_89c54fa571ecb947b8467172770711ea_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_89c54fa571ecb947b8467172770711ea_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2564

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          54KB

          MD5

          34e2293ef12943b559b723aa0fa19d77

          SHA1

          c39a59b2ccbbd1655e9db063f37967ad57cae554

          SHA256

          f2f60217bc371986a84449af00b142a4bd55d0605912183c1c1a63116a0a0948

          SHA512

          18d69b5be029a90a613d2dcdcd52ba57ea664fc3e816022633ff5949f4a8b4bce14905fcc729296e7e114951f0d6f354a927e87dbf8d719d55c05f96e673c55c

        • memory/1760-0-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/1760-8-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/1760-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/2564-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

          Filesize

          24KB