Analysis

  • max time kernel
    140s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 22:23

General

  • Target

    2024-10-17_1c27eb01a5f714066fe92a2381c811eb_cryptolocker.exe

  • Size

    72KB

  • MD5

    1c27eb01a5f714066fe92a2381c811eb

  • SHA1

    6e85f35d4934586ed60b35461ef869f8c6ad1d75

  • SHA256

    fa3e42dbce117f4ed9a3593cb878569dfbe797711ffdff8bc763f25db4c84ca5

  • SHA512

    d2613c82b4c8d6b1162a47a712258f407175717c2baa3c33058cd63bfbcf90a48e88595fef658082637fb0710c60c17532390bb30f7723658a513303170d0c30

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rx:vj+jsMQMOtEvwDpj5HZYTjipvF245

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_1c27eb01a5f714066fe92a2381c811eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_1c27eb01a5f714066fe92a2381c811eb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3632
    • 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:1632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    1b14f0b0bc7d66fbadc93c93ae86c2db

    SHA1

    7c6aa8a3cbae63ec063c6207559e07eba1f6dbbd

    SHA256

    fbeddd7fa8555be4a2ccbe40c931c917d404f9d3c10dbd54ae4ea28c0faa8b03

    SHA512

    68fc3cdb6a068fa385f029199282ceca695b973db7c8e8007b4328632703e4fb27a186563082c4c71732fb5f86b4983472c0d73872a54b310a4c54ee43e83bc1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1632-18-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/1632-17-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3632-0-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/3632-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/3632-3-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB