Analysis

  • max time kernel
    95s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 04:31

General

  • Target

    2024-09-19_9f07d7132ce5f0039cd0bbba5a6313ee_cryptolocker.exe

  • Size

    42KB

  • MD5

    9f07d7132ce5f0039cd0bbba5a6313ee

  • SHA1

    3b3b8b194fe6e54dab75978b9be91ca9a79e26b3

  • SHA256

    8da271c2e8b8413f878acff365cb4fe2bfb0e34de3261e209510f72ac2956702

  • SHA512

    fbb907677dc9e3ec3a9d42f7bf722654b16b657c60c9654d4717ad2a82a5c97e4f553d1e28e29f1391274ebf6898266263826f93f39bf7b60a920b0a802aa621

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDb7xp5:ZzFbxmLPWQMOtEvwDpjLeJAsKcb7/5

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\2024-09-19_9f07d7132ce5f0039cd0bbba5a6313ee_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_9f07d7132ce5f0039cd0bbba5a6313ee_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3328
    • 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:4780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    0863068c9cf03453028dd78f47fa9933

    SHA1

    44f3ac63d3515c1819614ce32630726a432ec260

    SHA256

    ec93ba35a398c116bdb4fb47fd13cfe8b90ef2d15d82d821f303f83b44e71bfd

    SHA512

    9b7b30300ac3c57c654d0380c620b1243b02c4664089818ccb5bf95de42bb1f9313078ac178b9555ad88d88c6be9d434a1e3b217b5db9b220e9d94427b156764

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3328-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3328-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/3328-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/3328-3-0x0000000000820000-0x0000000000826000-memory.dmp

    Filesize

    24KB

  • memory/4780-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4780-20-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/4780-19-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/4780-48-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB