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Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 20:42

General

  • Target

    2024-08-11_364dac4c47a17586d4889a0759eb2a64_cryptolocker.exe

  • Size

    86KB

  • MD5

    364dac4c47a17586d4889a0759eb2a64

  • SHA1

    5c671ded31f14bec48d90949c566b4bc4c8a736e

  • SHA256

    f01f9a128c83b99fbe0b5630c4ed6649495616614d4b3567c358120f7a8c5102

  • SHA512

    bd61602b13d56069206b4f3bdc069db37ef0bf59b9a4065b683b1a1e3ed62d8eeb99fe7b9e3db55a66569177a20d29e5cd705f34d248ada1b8c8d30da464fbdc

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCs6:TCjsIOtEvwDpj5HE/OUHnSM+

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\2024-08-11_364dac4c47a17586d4889a0759eb2a64_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-11_364dac4c47a17586d4889a0759eb2a64_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2588
    • 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:4604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    86KB

    MD5

    af0623f1173cdabbcae348cdb95ff832

    SHA1

    d0c3be5c8b7f611a0bfd766208132c03f577adf9

    SHA256

    7e92512149ed2ccef95702f74dbba70dccabc35f6566d1911a0f0439f8fa93f8

    SHA512

    18e98425bb0b9960bbd573de2b222ebb0f02663ce0d56203d9bdbc569ed338ac4af9909ec46c2fa618dce38ac718bfb0ad16456aa4a2bd0ca79faa9f13b68ca7

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2588-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2588-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2588-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2588-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2588-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4604-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4604-26-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4604-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4604-51-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB