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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 12:35

General

  • Target

    2024-02-25_4f928c70eb2f2605e81b468116c850b0_cryptolocker.exe

  • Size

    49KB

  • MD5

    4f928c70eb2f2605e81b468116c850b0

  • SHA1

    c2e1a092f12fd2000301129a3594c4dee8f80d22

  • SHA256

    7405830bcd9206b5ab5b27e94c36ab0a730d2f36da6744c2cb132781abffc967

  • SHA512

    320f2d9351bc0472ba6eab50ede1890885172d80ba9ee60dd5164a9f772ed5417ef447f474e783115d5a99c9de5f1c57e92bc4f48e6908b3f5eabcb1718df972

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQPdUvH:BbdDmjr+OtEvwDpjMX6

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • UPX dump on OEP (original entry point) 4 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\2024-02-25_4f928c70eb2f2605e81b468116c850b0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_4f928c70eb2f2605e81b468116c850b0_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    eafda11cf13bd8e72ffaf0371c7498ff

    SHA1

    10d4a55b15928a08927856ae101f1fef376bb213

    SHA256

    024680708e2cfe77ce47818600bde2b02090c891367eee0b9207dc94c9669937

    SHA512

    9d84b9fc639af2866868b42f0881805a2123607a59557bd2ddd72e1b7c1eba9565a643bc04927bbc7c2de94adf9abed9c81b465bba89f799ac06bfcf877ffebd

  • memory/1200-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1200-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1200-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1200-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1200-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2736-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2736-20-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2736-17-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB