Analysis

  • max time kernel
    91s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 00:55

General

  • Target

    2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe

  • Size

    69KB

  • MD5

    6584d173e72cb90e90188004f14c9a04

  • SHA1

    07932a4f6dd2e0ed3cd4ee22c642540e2323813d

  • SHA256

    00c0f793735fa37aaca53bde8613a5cce97dcd882120a2442fdce35eaebf2492

  • SHA512

    51246a698d75ebef5805523166c35ff91fd5ae37c9b2b64048ca34b88fc4d8587fd89a49814461b598ff926700b4245cb2423ff99d0c01882a40633ba2ec1f15

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dP:i5nkFGMOtEvwDpjNbwQEI8UZDV

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • 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\2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1780
    • 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:4168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    70KB

    MD5

    f1e895f46a8e34b12b3ce44f36b419a2

    SHA1

    b199f2424614b5fab2cee8a6df6228fbbdb81048

    SHA256

    ea6f07afda43445b422fb2b98ffa9699f616771a10fe2dab11a58565b9548f2c

    SHA512

    f184ab20a6f2c8c4cdf21d2439d7e3d251e7cf9765d5061405e292c52e6442932b798db1333e850e572fc88a14eece45f2715243e125c8b7cef618754743dabd

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1780-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1780-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1780-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1780-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1780-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4168-19-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4168-50-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB