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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/04/2024, 05:15

General

  • Target

    2024-04-27_d60b33922728cba1291b558fb3a47027_cryptolocker.exe

  • Size

    88KB

  • MD5

    d60b33922728cba1291b558fb3a47027

  • SHA1

    b834fd3fe03055a01eb9f4e5bae4ba3aa200c172

  • SHA256

    76aee393cf82dbf01bc2da343348cec201ad658987c50e9110857cb81c58e52c

  • SHA512

    55b6c525c3d4c10ef06c0ec2cf66e609a5c19d54aa851bbe38d7cd6860f017388a76816d016a17e7e9e59f7cc7cdfafa5bb74638ac01167c3e16a2df50828865

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvAcD:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8AcD

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-27_d60b33922728cba1291b558fb3a47027_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-27_d60b33922728cba1291b558fb3a47027_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    88KB

    MD5

    87c735a2325615e974136583dbc85ddd

    SHA1

    935ebb96315a68e72fc8afa3ad0241203c9ead06

    SHA256

    f92aaab97dea2d061c98bfaff13209929741aec61ed7d4bd3a3bd16cd798f862

    SHA512

    1b75dcd5b6b81bc28016764c1b762168ed00acbb3cbc9e0b76c891d114fa5ce470941e2eac4a5095a48a124f081499ddb3ff3b4ab23b86a08a0abdfd553e4680

  • memory/3856-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3856-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3856-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3856-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3916-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3916-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3916-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3916-3-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/3916-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB