Analysis

  • max time kernel
    133s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2024 12:14

General

  • Target

    2024-01-06_9f113ce18568a673a7844e433b88e657_cryptolocker.exe

  • Size

    98KB

  • MD5

    9f113ce18568a673a7844e433b88e657

  • SHA1

    80a8c73394cd665f28e9ba811998af5fe2540147

  • SHA256

    2624513a8a77d2920b999dc85de5418dad05ad2b9ce826c893bd644cfd8b1e19

  • SHA512

    b54593c4f6d2cb7f947f2d1a4167786c1b18e07eaff6a661924624e9ba84d0b3ed4ad2511d4f6cd0c3ce34c243b16044bdfe0aa61e3086e57d71ef47c806b7bd

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRiWjz+:i5nkFGMOtEvwDpjNbwQEIika

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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-06_9f113ce18568a673a7844e433b88e657_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-06_9f113ce18568a673a7844e433b88e657_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    98KB

    MD5

    634b769e23d966191e216e87646435de

    SHA1

    c9e2e66bca015fea8a0a87e6336278e1fc1c098e

    SHA256

    960311442053409f66fde3cd0d177b5ba7a738ca39b615974734fd1ecc3af923

    SHA512

    a34062ed08d1ec7fb41f6127d267964911edd0513abcbafaabbf646653a1e4376cff1420629a9a2e030d39b5163bf7fe55333134706cfae1f0f201f55e741e4c

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4048-21-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/4048-25-0x0000000002140000-0x0000000002146000-memory.dmp

    Filesize

    24KB

  • memory/4048-29-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5116-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5116-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/5116-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/5116-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/5116-10-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB