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Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/02/2024, 03:29

General

  • Target

    2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe

  • Size

    39KB

  • MD5

    db01fa163a477b7a6af4b05eb5249ffc

  • SHA1

    3d3bf36d35b0fe72bb446fded53800688acfa509

  • SHA256

    c6d21ca698324630d60737598ec2838b7fb8aa5fdcb3623224577cd9fbdf2729

  • SHA512

    782874ca39676d901067acfb37ec6a60858a57faedf3af3b8b0ece485fb7c09a27c60167b4e255f1d5b534ba69b3e233a3a1434304527dc919e162f8aa3d30f1

  • SSDEEP

    768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yLFka:bAvJCF+RQgJeab4sy/a3

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:3228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    107f44aaaf22630eb8d25987fb63de75

    SHA1

    e41d4eaca1ac866722dae961a841ca194a54c73a

    SHA256

    04c8dd000a91b1c61a84b3cee30369a81202fc7449eaa4b0f9dabf349c9b99fb

    SHA512

    04a4b61cdcb455786f03723cf3369606c56b920401c5aea17024b050d545fb1ba2b6df9d8615e8916a9e92918e0524661bac654d5356e1e060c2db5e07a5db73

  • memory/1112-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

    Filesize

    24KB

  • memory/1112-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

    Filesize

    24KB

  • memory/1112-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/3228-20-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB