Analysis

  • max time kernel
    94s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 07:48

General

  • Target

    2024-11-21_d9ea83a8216260bdf38f551897976d91_cryptolocker.exe

  • Size

    75KB

  • MD5

    d9ea83a8216260bdf38f551897976d91

  • SHA1

    5a0ee01143e2811b64fc7c1195faed76639e5cde

  • SHA256

    05caa489ae72b85855503dc367b626fd6305165f271dfedefc2615c81c8e7076

  • SHA512

    556ce28cacc60cb6df8c717b4457182a0db18630eb12338d784e263f1a209a7f8a8e10ac27b4b9e08a4bb9f7b07fe9c7458207e2417af0694c907389c6d9ed42

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zMw:9Uj+AIMOtEvwDpjLizbR9Xwz5

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\2024-11-21_d9ea83a8216260bdf38f551897976d91_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_d9ea83a8216260bdf38f551897976d91_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3236
    • 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:3736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    6b328c4a04b7fcf3de4941902f3f887a

    SHA1

    9632dfe4b40bc6cc7ade4199aa4a0b7899b1d5cf

    SHA256

    6e06535f77d39aae4d8704eab36a15b589fbdacecc414d31e5757cb6ccd89e2a

    SHA512

    7ce9917e2922b80b3035a10624c56bb36079fa50aa425d39b4d372efe53b2308daf5fd722b4ff95c846301da4f92201ac3bcfca2a994300917dde565d5d5805e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3236-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3236-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3236-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3736-17-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/3736-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB