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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 06:28

General

  • Target

    2024-09-27_8777f93c32c091df08c74188110e243d_cryptolocker.exe

  • Size

    41KB

  • MD5

    8777f93c32c091df08c74188110e243d

  • SHA1

    d52c8e87a2cf75ea7455d5fdc34c2d4fb2de8fff

  • SHA256

    6895ceec0deea473bc2bbca66b729f9cf7d4404f9dc9423867c3ebaab95436e4

  • SHA512

    52a0eb709e3bd3bfb27e36e8d595d5874347a8f29cd0b0581f7f35fe9cf7ee48ad9c9a5604ce3c7edf52758c01cbf3462a0df511048cad462f4244b4e32c5d78

  • SSDEEP

    768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCRB:bA6YcA/X6G0W143QI

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-27_8777f93c32c091df08c74188110e243d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_8777f93c32c091df08c74188110e243d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4304

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    652f1b717239320c18273c036d6c8531

    SHA1

    54ec2269149aa2d890edcb9f3d0cad359dc50f64

    SHA256

    bc450b4efb7f15ccec03766f363041b019a401e3254baa9851fdb1c728824cf7

    SHA512

    880e23ba2506084abd7749f1534d0464c7670cb61ebc8a1a2f4644e82f7e0a1817ee6ecea54b11372c59e7e6ed9c4e1eb1afa79db66dd1ced28015c8a5baedd1

  • memory/1824-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/1824-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/1824-2-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB

  • memory/4304-21-0x0000000000700000-0x0000000000706000-memory.dmp

    Filesize

    24KB

  • memory/4304-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB