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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/03/2024, 19:42

General

  • Target

    2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe

  • Size

    120KB

  • MD5

    94f39a8244ba7bd972810d56fd4df188

  • SHA1

    3f92a8f87525501636060d709a14f694208863bf

  • SHA256

    41c15ecb31738d3611258cd2ac804d9d8f92ab906845f4b409d40771fed6b735

  • SHA512

    8ceb03552c4337e4ca14d7efc17642ed419e5389a867510a5c2baf0a9783559125210b4c2e1da466671ed77f26782e71e5a8e1c5530b239525c5482f2bb45374

  • SSDEEP

    1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgo:u6a++OtEvwDpj6zs

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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-05_94f39a8244ba7bd972810d56fd4df188_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2284
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    121KB

    MD5

    d83a1c9b2d361e0766e5cc81bfc7840c

    SHA1

    71869fc686e346cdee99bee983249f30c8a9250b

    SHA256

    2cbddb8fed82f47900812e01aeb3d5d2ee19965494056547a74faec4e09483f3

    SHA512

    5b389c691602ccca57d5b09f75ca354236122341c8a296de78ac2f943fbc69d7e8ea6bd3dc906f7926079aabbd8ff623a55af686bdd012fb60b3bb7b3558ae59

  • memory/2072-15-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2072-22-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2284-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2284-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2284-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB