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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14/05/2024, 23:28

General

  • Target

    2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe

  • Size

    30KB

  • MD5

    abd2b034d9f7a4776256b77e6a449aa4

  • SHA1

    d0c71375fcb0a96eb6ac71b3e388706a51a84570

  • SHA256

    708e38eccbd35305831f5cdb1eca8f5103f6423287b1cf203992ac31996ca4c0

  • SHA512

    aef2162afff3058c6858806b32f58a803793a396c75bb7852230ce124fd7f383ca1591b05b458e3168529a6d6cf366ad978e3c7e7f03c9009537aa298c1e824c

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfF:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xw

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\2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1964
    • 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:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    7ccf27244b9a4872f9e312364e122091

    SHA1

    a751b3f556da402b97f4f9c9f95ffb169df10e66

    SHA256

    8a49b711fe11dfc1d7dd514d796c4fec370b815f381297621797a67fb24efdc5

    SHA512

    3301d5596858c9aaa996285244521844098349e6da04e47b960ef1aede6748f1eb316ff2823eaa668d91c522f1f6a543ee72549d93e77a725801b3d859d6bc5a

  • memory/1964-0-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/1964-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1964-8-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2572-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB