Analysis

  • max time kernel
    95s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 20:45

General

  • Target

    2024-10-05_19ea5743d2cdd1adea61768591412823_cryptolocker.exe

  • Size

    48KB

  • MD5

    19ea5743d2cdd1adea61768591412823

  • SHA1

    8f9d4447c94be7d51ed424c389e746ca2e68369a

  • SHA256

    f258c0cc6d07ad6c224d42239f63e381777df2bc7e4433c8b7d30b909c00f6be

  • SHA512

    342b09a8a9cb086f47a90abcf919aa849d7679ff484a6987ed61693d66d56310f246655a17ce55b813fa15c3a59993a33ae844fd96af30bc5e8699a4d3944688

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJG:6j+1NMOtEvwDpjrRraJG

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\2024-10-05_19ea5743d2cdd1adea61768591412823_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-05_19ea5743d2cdd1adea61768591412823_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4416
    • 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:4488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    48KB

    MD5

    c13f67fbd04f6ba6146b5e9d795540e1

    SHA1

    79478d7c391c6d937bab18e7ba5341d92bd92baa

    SHA256

    08845900a6e5f5b01c3e638ecf7ed4a6ba5ecee6cac3bbfe9a90f36e16a0aa32

    SHA512

    ab98b39069596473d1565b0506a608e700b771df258ec7f5f802cd70d936449efff58e8cdc8dbedd0af1a81defc127adb59fb552cc0509bc06315fb018b0a14e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4416-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4416-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4416-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/4416-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4416-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4488-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4488-19-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/4488-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB