Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 08:26

General

  • Target

    2024-10-31_6392767d39c029ab0a2c5658a35c573f_cryptolocker.exe

  • Size

    39KB

  • MD5

    6392767d39c029ab0a2c5658a35c573f

  • SHA1

    e9c87d6b7a3d15e5ffc1de9730f2081a98002aa9

  • SHA256

    8699a6b25aff21f6fe3e9ddb130adabb140257aeb537515d794f6210163b7cd4

  • SHA512

    e5d739affc8060c86f5c68ccff7092e23b8c949f6454634ff49dadbd5d29043debbf58fed9f2086c5a827244c3f672b1bc0a61ef03f3d4c72e222887013ea880

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66Ir:vj+jsMQMOtEvwDpj5HW51r

Score
7/10

Malware Config

Signatures

  • 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).

  • 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-31_6392767d39c029ab0a2c5658a35c573f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_6392767d39c029ab0a2c5658a35c573f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:3604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    65de556c86912be8dd2bb284973b86f9

    SHA1

    6c81011faa43eb5f6aebff704484a024fb7dda71

    SHA256

    702f3beb6a007eb6734ef4c2f92f2a8ee6c679cb772ce7f02b851865e0a89895

    SHA512

    64f96822b21412d3bb38d4173b565e791a2c27e60d49e9a5b1296dcf5c9802518eca2cca5286a352242dad80e1e7926bb4336875a3cb3f2ae3343899300a9d17

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3604-17-0x0000000001F60000-0x0000000001F66000-memory.dmp

    Filesize

    24KB

  • memory/3604-18-0x0000000001F80000-0x0000000001F86000-memory.dmp

    Filesize

    24KB

  • memory/5080-0-0x0000000002150000-0x0000000002156000-memory.dmp

    Filesize

    24KB

  • memory/5080-1-0x0000000002150000-0x0000000002156000-memory.dmp

    Filesize

    24KB

  • memory/5080-2-0x0000000002040000-0x0000000002046000-memory.dmp

    Filesize

    24KB