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
    13-06-2024 03:30

General

  • Target

    2024-06-13_3f588dacc2c029080322321f740dd773_cryptolocker.exe

  • Size

    54KB

  • MD5

    3f588dacc2c029080322321f740dd773

  • SHA1

    3f632c03dc6a790fc1dd76c5e8d9ca640d5035e9

  • SHA256

    a4d9c2f415ec9444198d95e45f6fc0245b326902e587ab0e5e86a5b561dea843

  • SHA512

    dac69b1df3673ff66807e0b71f6c9667c41dc82e4fe89527a6dd5f507b2b6dcf16c3bac1c6248113ef7c6c86c68747cebd820b8c46407259cb537a74dc5c0b77

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRszDr6KAg:79mqyNhQMOtEvwDpjBxe8TpXRSDeKf

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 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\2024-06-13_3f588dacc2c029080322321f740dd773_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    54KB

    MD5

    648ce43a2a7f64bbdb288da5ef19ba22

    SHA1

    130bcf79a11a83f77cb59f30451a0e3f39c20cd7

    SHA256

    25df2892bbad327db5a1adf6566254f92895e625bb08b3eac7c872ca2349629b

    SHA512

    16bdf3b70827115940ba6bc2e96d309b03f1f1a3d621b15e8c477fd090ba6eafa3172001dd45f35a833fb076d9e45362ee21126c99163d76e676b528b24df1ca

  • memory/3008-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3008-19-0x0000000002000000-0x0000000002006000-memory.dmp

    Filesize

    24KB

  • memory/3008-26-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3772-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3772-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3772-2-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/3772-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3772-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB