Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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, 07:41

General

  • Target

    2024-11-21_c03b3eacb8676f75ec30a08e6a235a87_cryptolocker.exe

  • Size

    71KB

  • MD5

    c03b3eacb8676f75ec30a08e6a235a87

  • SHA1

    30e3181ae25b2ac9975a900acf4713cfbbefb3d9

  • SHA256

    63386e099ec4e9fd1f4a24677be86979bf95ab248f522dc72cd8b3db92a94e09

  • SHA512

    3594fa0454dc757a93708a0420d1829915f6438f9d6f25de468b9a43de4bcf543c037cda66991a117a2f85444d5d636781d5e5d42870dd98a971584efeb38b28

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/d3v:i5nkFGMOtEvwDpjNbwQEI8UZDV

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_c03b3eacb8676f75ec30a08e6a235a87_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_c03b3eacb8676f75ec30a08e6a235a87_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3168
    • 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:3160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    1cfa30584ac4e24dcd9af87191fa7e20

    SHA1

    466411d42a28c653afdd6355cf47643ad3dd14e5

    SHA256

    d453817fc708befc5bfddeb1ed5ff88367039db77f2776c9185a83a77e6b7a06

    SHA512

    7d3fb8a98cc172adc7ac60a9598df24b97a046b65a866ce50eadc0840c73185085e8bd2d663964dd3c419d6ea1a41349e7b92a565759636d905169e05bc6815b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3160-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3160-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3160-50-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3168-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3168-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3168-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3168-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/3168-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB