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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    10/01/2024, 05:55

General

  • Target

    2024-01-09_6f6dc71b510cbe7af6e285bd5285e928_cryptolocker.exe

  • Size

    38KB

  • MD5

    6f6dc71b510cbe7af6e285bd5285e928

  • SHA1

    5c2070b606e0522e30ce05fcad623b9544bbaccd

  • SHA256

    400ccb3c8238e14f64e26fa1bba9d5a970aafa98b9b7f7e96090ae7fa8665951

  • SHA512

    ab07f9cab47cc4640c69b4f95cbcc5f88b304815f62306b86092c7074c651b950819d09b6d60a5b7f471343294e8b480bed3e396fbd71487933851691cbede42

  • SSDEEP

    384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5co9+rXS:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+ri

Score
7/10

Malware Config

Signatures

  • 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\2024-01-09_6f6dc71b510cbe7af6e285bd5285e928_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_6f6dc71b510cbe7af6e285bd5285e928_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    95a70e8c9f545b7a85ee16b9b95760ec

    SHA1

    478b8d76b01236b8a649e1a9ff3bfbe96702a39d

    SHA256

    cce0ac97ff2cda45ba583d9eaead96cdbbf1f1abfa61f90f848bf68571997998

    SHA512

    842cb415ba1455f64cbb0d388f833a7cdda3c9346c0021207487a7960efe9c39838c3e8f78aa0af327c11877e19dd94f8df155f8ff6c208024598022895fc3f1

  • memory/1168-16-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/1168-15-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB

  • memory/1700-0-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/1700-1-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/1700-2-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB