Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2024 10:22

General

  • Target

    2024-08-25_ae4ecb3c413659b952843b41f2b73cc0_cryptolocker.exe

  • Size

    53KB

  • MD5

    ae4ecb3c413659b952843b41f2b73cc0

  • SHA1

    1d51f0fca96618d306acf578151a2d65ce8e4dd2

  • SHA256

    e3864e8a8f81401612580e529e69d91cc0b14eb85f57f19c6d6639b9b843dadb

  • SHA512

    7678fda69d43be8a29d045f9dfb0c8a16d9a34857750f59769b42d04d4094bb6d69f9948c76efb35cfb3e358ee04f62c88bc90fb96c0db73bad19a61d5144c49

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0ntbcv:vj+jsMQMOtEvwDpj5HczerLO04BGcv

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\2024-08-25_ae4ecb3c413659b952843b41f2b73cc0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_ae4ecb3c413659b952843b41f2b73cc0_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3156
    • 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:3564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    8b8beec94693ddec507996e3c2ad334d

    SHA1

    f8f8966e8ac72ec59dacbceb630a7c455a841255

    SHA256

    6b745f33d35e52cc8f90864e37a1451bcfd774b43736c210e353ed4c5d369c9b

    SHA512

    9ab1f78d2f40fc0855e39bc4790644b94b093e74d7e2c25260bee6a7885557ea375f7a9f6fb0cf00c27455fbef6b03e182d7122c807c092616aacb2e7c7d9cdf

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3156-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3156-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3156-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3564-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/3564-23-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB