Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/07/2024, 06:21

General

  • Target

    2024-07-27_052768b99c0ebf7ed32789ba8e37acb8_cryptolocker.exe

  • Size

    49KB

  • MD5

    052768b99c0ebf7ed32789ba8e37acb8

  • SHA1

    d8c43f24a08310557c32257267a293e7ba41bcae

  • SHA256

    3200d746d5cee5aaf834baec4fcceb2928d154c0dfdb981d5941638853389c9f

  • SHA512

    b4c03365875ef03f765d4fdf5e256a847618742c51594cd465a8162a948ebd700abe493ec8bd3167cb36f5102b61855c148cd0915a54c5d1775bde329a9acc64

  • SSDEEP

    384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0G/74zpzP:XS5nQJ24LR1bytOOtEvwDpjNbP/0Geht

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\2024-07-27_052768b99c0ebf7ed32789ba8e37acb8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-27_052768b99c0ebf7ed32789ba8e37acb8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3540
    • 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:4608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    a3a25f0321fd61bbe6dde1f80709a0a2

    SHA1

    8b58240c90ac5e7cd95db35f2fe8f3ae8744333a

    SHA256

    30d43370018809790f78ff1fb1a8cee301a346ae0394552844c45eb5aed2a340

    SHA512

    a15ececfd137941fcb65ce7c2655f3a130d7330801a7f9f9e59a0940cbaa2e3509e05442de9803f1f22eea87a35fc018321df1a957ecf86d735e3aba9ba54344

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3540-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3540-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

    Filesize

    24KB

  • memory/3540-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

    Filesize

    24KB

  • memory/3540-3-0x00000000007E0000-0x00000000007E6000-memory.dmp

    Filesize

    24KB

  • memory/3540-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4608-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4608-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4608-49-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB