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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
    27/09/2024, 16:27

General

  • Target

    2024-09-27_81a0ac62e5debcc7ffa9953cc156a663_cryptolocker.exe

  • Size

    33KB

  • MD5

    81a0ac62e5debcc7ffa9953cc156a663

  • SHA1

    581a8649e28be30749322888351519d64ff52477

  • SHA256

    3f591b10c373395352c1fff1b41151763bb62a7443e7997125becde05151cacb

  • SHA512

    5e640a88c4430e252d6d171bea149b1406c00337b8ee97f7bd73e5a50103f4bb692a41af8ff2f75dc1cdf2ffcc8783996441a4f107cb4f1991d437a69bbb1dfc

  • SSDEEP

    384:+cX+ni9VCr5nQI021q4VQBqURYpetOOtEvwDpjqIGRxzOP51FqQLicn3f3E:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvE

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\2024-09-27_81a0ac62e5debcc7ffa9953cc156a663_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_81a0ac62e5debcc7ffa9953cc156a663_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:968
    • 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:1492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    33KB

    MD5

    f201493803b30fdc7db679a37cc4d3e4

    SHA1

    83ccd2a27ccf87ab572502c02020ee0d7cceb471

    SHA256

    98cd0d345151bc97edf5779d8c0ddf97c2fc3cc1187058a9b8ec6dd52f6ff23e

    SHA512

    a2c5be3c86524cd0e37d1a625176e8c724232145a3e66665515ff937beec65a6a56eda04d74206d8d7f4bc7f7abffc583f03d4ea223f77ee807c5e9c294c1605

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/968-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/968-1-0x0000000002290000-0x0000000002296000-memory.dmp

    Filesize

    24KB

  • memory/968-2-0x0000000002290000-0x0000000002296000-memory.dmp

    Filesize

    24KB

  • memory/968-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/968-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1492-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1492-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1492-50-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB