Analysis

  • max time kernel
    148s
  • max time network
    156s
  • 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, 04:31

General

  • Target

    2024-06-09_829204e4a2a68cd95041509c1385eacd_cryptolocker.exe

  • Size

    43KB

  • MD5

    829204e4a2a68cd95041509c1385eacd

  • SHA1

    c34efdbc2fca6cc308dc29e9ff8996cfee2d0ef6

  • SHA256

    011f086837dfa0cfce03fee19515550b74c0b4a87becc6e7423864c73385f21e

  • SHA512

    685c20d788fca46f10d2cee2890b3a83e1cc0c278832ad06ddc19810ca47948ab0a2081f151fd42f8f1169deadf85e002be45e34b7ab046353ee02ee2d403504

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYshNhj:i5nkFGMOtEvwDpjR+viHshNF

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_829204e4a2a68cd95041509c1385eacd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_829204e4a2a68cd95041509c1385eacd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3604
    • 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:3192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    56bce0be59f026cb1b86bd302b5203f3

    SHA1

    c9fe2e1ef5fe4ed850ad8f2ac2388e5c054b5be8

    SHA256

    cb88cc7d6a0cc05c7647bd995a4b2a452120cf49628fbfafd64b3494759710db

    SHA512

    6a1ba377e50643d56b297ade5186d6c7c18973d919f3d827bb2d90b4613739e31d009a0563fcff6e8e6d0f6202e464cacae1adfe9ed903dbc86e4879ec29010b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3192-27-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3192-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3192-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3192-50-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3604-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3604-1-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/3604-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/3604-9-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/3604-19-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB