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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2024, 01:35

General

  • Target

    2024-01-28_780d80309d8a1306c5c759994889ac95_cryptolocker.exe

  • Size

    40KB

  • MD5

    780d80309d8a1306c5c759994889ac95

  • SHA1

    4619bbe279fad714f4a46b9591f668ad1aa63a94

  • SHA256

    c46a219e1c03dd3b1a6facd2a8f1143b03b0226f05a31bdb9454e45f82319bb1

  • SHA512

    be9d2384c2a6ac48eb997fe96931405846bb82d9d5e627e0dd2054e97193c2adc0859eb734debb3f9aad4855409a9c0e7723a3d68a9eace27240da4a54e5ec5a

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+s2Md5:bgGYcA/53GADw8Clgd5

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 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\2024-01-28_780d80309d8a1306c5c759994889ac95_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-28_780d80309d8a1306c5c759994889ac95_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:3212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    ce9aa53f000f934fdfb88793eee76c54

    SHA1

    eaa11db2aea0e771d68f9a58043782ea31df1c37

    SHA256

    3bd9326c34f4ad5666d8c21c90ba9c085116cf1aba742f2e0362e7336fe2130e

    SHA512

    6f636b164175cb9dd08765270f5799ba8498df7532119c1a6cfb6884269166d8e41f1128dc814ab8b419d85b8397ac3bd3ac33418f5968e16e540b9751f85412

  • memory/2772-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/2772-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/2772-2-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB

  • memory/3212-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/3212-19-0x0000000002180000-0x0000000002186000-memory.dmp

    Filesize

    24KB