Analysis

  • max time kernel
    94s
  • max time network
    132s
  • 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 05:33

General

  • Target

    2024-09-19_b197484659fdce279a4158819229d816_cryptolocker.exe

  • Size

    46KB

  • MD5

    b197484659fdce279a4158819229d816

  • SHA1

    c54b6fac5f18e42c8ec9e12f6831a8c66f9d81e5

  • SHA256

    82d77f2697a4d4807d1947bd0186a7b31b20c21233d5f1a35542dd9e55ca2fde

  • SHA512

    920162505a03d0b3a5db86db1bb98b195353ca7bd75967a335270a8ed2c6ddddbbb2fd20e284577758bb85d0b6b58b4bf50927143cedaf037ba78bd82b1036df

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDQm:6j+1NMOtEvwDpjrRrj

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\2024-09-19_b197484659fdce279a4158819229d816_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_b197484659fdce279a4158819229d816_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2848
    • 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:5080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    1d10f9035aba8def38e36149cbef32fe

    SHA1

    918c04b264da81857ddbb972c6edd25cb6fd5673

    SHA256

    0f6f8977ae53b082df0f521c0ff9fa546374456fa6db90fbc83273c290b93572

    SHA512

    b3726785379cc57c8b8fd9cba3725d06ef9c39a7f5b37e7c112acb24d56a578ead0a32270074b73aeaafce0fbfd48c593e8d66402fc7a821e0bd88effd078bd0

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2848-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2848-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2848-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2848-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2848-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5080-19-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/5080-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/5080-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB