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Analysis

  • max time kernel
    148s
  • 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
    09/09/2024, 22:26

General

  • Target

    2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe

  • Size

    80KB

  • MD5

    b146c1d4d21e2ae3f9b266354b01ef34

  • SHA1

    5fbbf48a3affacf0674db414c5494d606db0ad69

  • SHA256

    8551b36540f1bf97f2974dbcf2cf87896cb50fef4d731a1c4aafdc1f337d1b67

  • SHA512

    8a1c5219874a8c8342537d54a18a079684270376746f7bac4d24d65d9d282581b4c5d77581caf09ae37cda43d66f01d7422cba0668782d55e7fc29fa2424e16d

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktN2r:X6a+SOtEvwDpjBZYvQd25

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\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4084
    • 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
      PID:1264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    81KB

    MD5

    0e6e119c8f65be212a2b84077f1e7960

    SHA1

    13b3e8868d1cb7812eb3fcf33d4f12a046338cfa

    SHA256

    f250a69a7f66e2b46857d3cf9248a75615808369aea7ab1a0ba52acf9f14384b

    SHA512

    a3c216c44d3367e52822614ee19b061dd9f94ac1c34b055dc95c5b4865d4776909e194dc14c679b3f3cbb72fe02235c648724ae629663100990b1825d3036bf7

  • memory/1264-17-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/1264-18-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/4084-0-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4084-1-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4084-2-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB