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Analysis

  • max time kernel
    144s
  • 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
    11/08/2024, 00:33

General

  • Target

    2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe

  • Size

    5.5MB

  • MD5

    553237687f90208ad55f27b66785924c

  • SHA1

    4e690583a57ddcbdbe5b5b9551fdf6da409ac465

  • SHA256

    df2977bfaa9452351a5af4aacf78eefafe7e1778f70741f0c4ea433663bd361c

  • SHA512

    5fe24cd4a2559fac4527c8a84e0b3b4148f89d873ed91ebf593d13f0351f9bc0e47a33a76085222390e28f5f88bff91a4e7f7dab66846ddc17457cf268a9b415

  • SSDEEP

    98304:Vd3WWklj4b+ZTRXb81tTFjWYt8nfa9WfkOsm5UfjQNYT/StkkLlDzXgsOUlE8Fo:Vd3Vklsb+ZKyYt8fMtOsm5UfjQNqSKcW

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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4632
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    5.5MB

    MD5

    943f109a3e3d8d8fca0e426798db39e2

    SHA1

    07e9ee958fbd8686e81f91126696cca5bbbe049f

    SHA256

    df18df4037addba767f5df9bcf73267909718d287b23bbc6ddbd91348c67f46a

    SHA512

    949616ee1eca9eab0c341743201e6c71fb489a1e1e7005d27caa4a8f332d4cbf3c12510a4b51861404e3a0deb4b0c30378681813a21dd57076fde10ff03e0ee1

  • memory/4560-26-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4560-27-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4560-35-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4560-24-0x00000000004F0000-0x00000000004F1000-memory.dmp

    Filesize

    4KB

  • memory/4560-29-0x0000000002A00000-0x0000000002A06000-memory.dmp

    Filesize

    24KB

  • memory/4560-25-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4560-22-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-2-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-3-0x000000000050B000-0x0000000000805000-memory.dmp

    Filesize

    3.0MB

  • memory/4632-13-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-21-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-0-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-6-0x0000000002A90000-0x0000000002A96000-memory.dmp

    Filesize

    24KB

  • memory/4632-23-0x000000000050B000-0x0000000000805000-memory.dmp

    Filesize

    3.0MB

  • memory/4632-5-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4632-4-0x0000000000500000-0x0000000000D8B000-memory.dmp

    Filesize

    8.5MB

  • memory/4632-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

    Filesize

    4KB