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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 02:25

General

  • Target

    2024-09-09_02cd5424ca68f9a2899daa66464ec5eb_cryptolocker.exe

  • Size

    63KB

  • MD5

    02cd5424ca68f9a2899daa66464ec5eb

  • SHA1

    de7b5e083c914a15f7dac63c20c6fc5fc4ee02f3

  • SHA256

    6153e82503bae60ec8f793f35caa8d2cae8257b1d282ca71f4bbc52f3762e1b1

  • SHA512

    4c6627f0f9f75a37a2c639c21e139d92621b8c6ecf3ffe109c5304416712d7dce519364331ce64997c44eb56dc17c7797c824c469998125c6214a21bafb0dbcd

  • SSDEEP

    768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zf:0j+soPSMOtEvwDpjwizbR9Xwzf

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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-09-09_02cd5424ca68f9a2899daa66464ec5eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_02cd5424ca68f9a2899daa66464ec5eb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3704
    • 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:3136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    fa2428fc0608bf4b1bae6462ddb6d73e

    SHA1

    68573e7b7604fbd3915fe45eac3a05b2e0118e1c

    SHA256

    a937535f90476a3259642f816aef3191b5d85ba1ef8639f99769f860dcfd3326

    SHA512

    40ac18f57adf0bcb1e4c20821ee648ee4c149b66faa4673607d7dfa94375323d0bae95aad9e01f96a16fdb59ecf4d9c9317e628d955e789a1ab46b23bf7f5df9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3136-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3136-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3704-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3704-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3704-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3704-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3704-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB