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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28/01/2024, 03:32

General

  • Target

    2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe

  • Size

    39KB

  • MD5

    7d5ce2a3ea42c29393c4c52b5eed82c5

  • SHA1

    113a68984c5437efba94bfb6fe554285d665136b

  • SHA256

    085b8a6962c36ef8b6244019396c7823c9daadabad3726f543f9a92e19d27313

  • SHA512

    dc526a400bf09cce3c84a54b5072b4fdde6c8f1c17580942e146079010e6746b9cacef3f6ded071ba344e01a41979ab320f7207364f8ace9e98c8baf8325fc26

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKK:bIDOw9a0Dwo3P1ojvUSDhs

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\lossy.exe

    Filesize

    39KB

    MD5

    4f4078fd00cb9b670828dc1d50d009c1

    SHA1

    4134d6f5693d9285740a988ebb2a116726afb5e4

    SHA256

    b99d19f48b74b044dae80c4919819f4f5a93b63964018ba2a0f4ce48bceec9a7

    SHA512

    513afa7798f67ea3d449c7bf774dc2aee587bfe6edba21eb3cc11016e9dbaed0b14ec8ed87b6af0bb0824149b7fb279401e11498e1e59bd1c2a8a9ca2100865a

  • memory/2228-15-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2228-21-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2356-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2356-1-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2356-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB