Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    24-08-2023 19:12

General

  • Target

    8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe

  • Size

    88KB

  • MD5

    8b08a527905ef9128eb609da616c4ea3

  • SHA1

    c6edbf6a963e42d638765c38cb6814003cff34de

  • SHA256

    5f993af590c80fd5722a4ad55994c249097766ba38be23351081138b94eaceea

  • SHA512

    78684327d15d4cbb934a9f0e76c601619df383a704b0ff42012359d7bedf8b339be586bba959323f2b5482153484d795f1e993b289660bc2e2e6832d7650c95a

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mD:xj+VGMOtEvwDpjubwQEIiVmD

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\8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    69103bf3e9217570cfe64a60c0fe9d88

    SHA1

    058cfdd4c751c1640d2a50755a287013d9d75dc8

    SHA256

    d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

    SHA512

    b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

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

    Filesize

    89KB

    MD5

    69103bf3e9217570cfe64a60c0fe9d88

    SHA1

    058cfdd4c751c1640d2a50755a287013d9d75dc8

    SHA256

    d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

    SHA512

    b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

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

    Filesize

    89KB

    MD5

    69103bf3e9217570cfe64a60c0fe9d88

    SHA1

    058cfdd4c751c1640d2a50755a287013d9d75dc8

    SHA256

    d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

    SHA512

    b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

  • memory/1080-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1080-1-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1080-3-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1080-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1080-14-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2836-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2836-19-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2836-18-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2836-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB