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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2024, 07:26

General

  • Target

    2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe

  • Size

    40KB

  • MD5

    29653b792cec6720949c67ec569f8b3a

  • SHA1

    b22f3f1f44deb65180f7df0d233ec272b6e6a3be

  • SHA256

    54c232cb955b85926c58bb8b9b2b84d220dc69a1b2c961a2ae6a40e704ed6fb5

  • SHA512

    7a67aa68e1956457c60eeefaf5b0a7bc8f114e805d455e71a82652093e8f331c5dc42e9c29ae831b853aa5853373c8b4b13e4b7fc62a5dd09f39326c5959be82

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh67/rl:6j+1NMOtEvwDpjrRbrl

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1200

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    63d7788a971026b24fd508812b420f8f

    SHA1

    a0fd335f6bbd9e2764c5699e9bd3dc3159b2ffc0

    SHA256

    fa44170b14290b2411f5d13d399357915c82f4f2a0215d76c35713ff406b0394

    SHA512

    5ee9a1c711f8055fc6c9676a328210a5bed989588100224c6766bdd2bbc00f30ea64644dbb63db073daf31ccf3a88b040c7159ac219d27f625a594dbbc0d58c1

  • memory/1200-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1200-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1200-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4724-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4724-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4724-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/4724-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB