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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
    26/01/2024, 21:22

General

  • Target

    2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe

  • Size

    46KB

  • MD5

    32c7b92fe7faee66936391bd1bb9e69b

  • SHA1

    11c0446ef4b91db2f9cc10597f74423106e94b54

  • SHA256

    4f06a5711862e4774742d3f578c9e0f00a389a7110bcdad69f45e45da0c25051

  • SHA512

    d672bfa461827e763b073513e05089b06a00ecb016505abd4b61b918b0534e32b3b7fade375deff6b48abe0214762e202f2c1bf62eda6a21a598583acce1da61

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hD8:bgGYcA/53GAA6y37nbY

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\2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    8d47f25d72526df1d6643e332cd9aa8d

    SHA1

    44c64c2b6f77fdc7946d426e20e372c363be6f90

    SHA256

    9068a1c55760dd8bfb16110208d5476da199f143e92e6408d96bb2a7324f39ee

    SHA512

    227dcce49332e64af2b0d1ea0fbeba9239513dd558b06c50d2d936fbfc228f824b5766cfbde8543d6ef1328226620cd4fbc86a0f9dc6cd483511d1b6646f61bf

  • memory/2316-0-0x0000000002260000-0x0000000002266000-memory.dmp

    Filesize

    24KB

  • memory/2316-1-0x0000000002260000-0x0000000002266000-memory.dmp

    Filesize

    24KB

  • memory/2316-2-0x0000000002290000-0x0000000002296000-memory.dmp

    Filesize

    24KB

  • memory/3036-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

    Filesize

    24KB

  • memory/3036-23-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB