Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/09/2024, 05:31

General

  • Target

    2024-09-13_99a7f3a3ad5c9c235b55a798affb3aa6_cryptolocker.exe

  • Size

    74KB

  • MD5

    99a7f3a3ad5c9c235b55a798affb3aa6

  • SHA1

    8327aac1ffcb89b3e72a7eb880f457aafa50b1ee

  • SHA256

    24773f76c269cd60697c528bac2064ad0dec2024b9f076d49524732b0e5e035c

  • SHA512

    a9f60e9ece0794ef291ad0fdf9e703d40974db172ad83f0eb99084de516bc94ba1e42b2c3b413e4c2b89b5b115089605f7f57a78bdbcddc203ecc949093e353e

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zh:9Uj+AIMOtEvwDpjLizbR9Xwzh

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\2024-09-13_99a7f3a3ad5c9c235b55a798affb3aa6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-13_99a7f3a3ad5c9c235b55a798affb3aa6_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3880
    • 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:452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    74KB

    MD5

    02aeb069ad7c149bf0179b8b0ba8ae30

    SHA1

    0b886e5b3581e193f3b7f260378a827bcd631993

    SHA256

    bb72f3a2783370f72d3c80362d35d9544aa2dc2439a3a8a4b04a2f1de7f554d0

    SHA512

    7d421f685eb5b3a7d81f4b6e6fc7fc31195f441a4a9b5ac77af2f401cedfcb95a40d060c9e27dd17b7de979a6d6246a7e37ecfcf17a24b16fef7e4d949a630a5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/452-17-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB

  • memory/452-23-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3880-0-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/3880-1-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/3880-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB