Analysis

  • max time kernel
    96s
  • max time network
    127s
  • 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 06:23

General

  • Target

    2024-09-19_2e7efe3e345a262d79b815e5f990f550_cryptolocker.exe

  • Size

    39KB

  • MD5

    2e7efe3e345a262d79b815e5f990f550

  • SHA1

    128148474215326c45152dd1140826138d764262

  • SHA256

    3fe280c49e308922d47a122a16028021b947c80041e350ea6ee3af060a6f413a

  • SHA512

    dc383eab7b9e097144af38c4bbe0d6195655aed5a371c42780016d516ef09ca14dc8454bcf0fd60b8f352f4627561bc23fd47edbf65c1fa77adf563a5173d632

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnt:m5nkFNMOtEvwDpjG8hgpt

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_2e7efe3e345a262d79b815e5f990f550_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_2e7efe3e345a262d79b815e5f990f550_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4908
    • 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:1768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    8a3014bfcbe04c42b9a23f05c3dc9013

    SHA1

    32c04353a0fcc75e6f8b32b95c0536dc32b9d9d3

    SHA256

    9eaf6c4c29dfe3463087b49fa6669e52e40b5d01f72cf12c7ed0eb2d57cb014e

    SHA512

    edb597d3a033c4eee22cdcdca216c9ac69f85a57d6e8647f2cdb69cea1fae0e021f6daf207ee3b6eaa6646456d671f7aebeabb7b57522968b97fd7f5f8197b50

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1768-19-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/1768-20-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/1768-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4908-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4908-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4908-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4908-3-0x0000000000800000-0x0000000000806000-memory.dmp

    Filesize

    24KB

  • memory/4908-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB