Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/08/2023, 18:09

General

  • Target

    fff4f59c5b03c91c8df7c8f34e775427_cryptolocker_JC.exe

  • Size

    142KB

  • MD5

    fff4f59c5b03c91c8df7c8f34e775427

  • SHA1

    6c43a4b4fe8a604b8a0965b38f7716adaf1889da

  • SHA256

    8d466b5b7fa742437b032facb7c4ecb8b04563bdb2883989893b58f87708152c

  • SHA512

    9bf55d3f2dffc7e3c2f3a62c474f435eaba698dd28144b58570dc570daa08f3893b16f785fa94fed6fad31f6d9699c13690d1a0eee132c88fa4db53e9701289c

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPbo:V6a+pOtEvwDpjt22+

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fff4f59c5b03c91c8df7c8f34e775427_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\fff4f59c5b03c91c8df7c8f34e775427_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1264
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    142KB

    MD5

    5d22d0a543add46545560b0e02840986

    SHA1

    917c93e208e2f092bc1d00acad7b6d8c59c1909f

    SHA256

    913e0f6495ac3bdc659520e4ecb2e91c8c32b3e96e1eccedcfd371780d6558cd

    SHA512

    9b5bc3251342b80df8f44d93ffd63fcf8a99f72c8c027a44c907710c6930276d4475ff7dfcdee6c2cb415583dc89ef4cf02cd868b606e3aef19e436a7050330f

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

    Filesize

    142KB

    MD5

    5d22d0a543add46545560b0e02840986

    SHA1

    917c93e208e2f092bc1d00acad7b6d8c59c1909f

    SHA256

    913e0f6495ac3bdc659520e4ecb2e91c8c32b3e96e1eccedcfd371780d6558cd

    SHA512

    9b5bc3251342b80df8f44d93ffd63fcf8a99f72c8c027a44c907710c6930276d4475ff7dfcdee6c2cb415583dc89ef4cf02cd868b606e3aef19e436a7050330f

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

    Filesize

    142KB

    MD5

    5d22d0a543add46545560b0e02840986

    SHA1

    917c93e208e2f092bc1d00acad7b6d8c59c1909f

    SHA256

    913e0f6495ac3bdc659520e4ecb2e91c8c32b3e96e1eccedcfd371780d6558cd

    SHA512

    9b5bc3251342b80df8f44d93ffd63fcf8a99f72c8c027a44c907710c6930276d4475ff7dfcdee6c2cb415583dc89ef4cf02cd868b606e3aef19e436a7050330f

  • memory/216-151-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/216-150-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1264-133-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1264-134-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1264-135-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB