Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 18:49

General

  • Target

    2024-06-12_64fe9fad41d1ad9155251aa498ed7083_cryptolocker.exe

  • Size

    43KB

  • MD5

    64fe9fad41d1ad9155251aa498ed7083

  • SHA1

    71dd4c26dc514e97f8c95d86ad4f87c31ea4b835

  • SHA256

    011e185ccbc67d85bef765555f0ab87755f53adceafda7650998d4a1a4044974

  • SHA512

    f3c5a889359657d86f8506181305c83a8ddf4794b19471f813ea6de95c57616ee4f66019d42a3eb61e43c8e3a616c2dd57a5f66e2fc859deff269105d5e88d5b

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnY1n9V:m5nkFNMOtEvwDpjG8hgpY19V

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-06-12_64fe9fad41d1ad9155251aa498ed7083_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_64fe9fad41d1ad9155251aa498ed7083_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    18db5ba22fe538129b87b48f23cd90c8

    SHA1

    32bb6fc10ef0d2c18a8c04c7ece576f76b89d4df

    SHA256

    01485005ff54b281ea74ef3c76060a7e6bd00552bfced1c23e69ce14b3cc01a1

    SHA512

    3eb7a22ee50415c7faf67ce019f05d751cd5714eadbd1f562a0fc827df03d0abc693950981580221226a8a8eb51a5a61190779ba359a2e2f96ca83bc09a56de9

  • memory/3132-20-0x00000000007E0000-0x00000000007E6000-memory.dmp

    Filesize

    24KB

  • memory/3132-26-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3132-27-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4296-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4296-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4296-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4296-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4296-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB