Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    18-02-2024 18:00

General

  • Target

    2024-02-18_a956815c6381dce1c944fd566011517f_cryptolocker.exe

  • Size

    40KB

  • MD5

    a956815c6381dce1c944fd566011517f

  • SHA1

    9ad436d02fe31240760ab1c6a95d98dcfade494d

  • SHA256

    c50f18840b91a91e74ab8a94d5d5fe55a25adb2e11ddc55f58d3b1c528897966

  • SHA512

    eee54658e62bf6dee796d971314f412388e4801fe1b6e7ce02139d3e086f57f9767c1e3f6914e627ec1b795a7c2e11d62699532895299a3adcaabc9934448534

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtsC:6j+1NMOtEvwDpjrR2sC

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • Detects executables built or packed with MPress PE compressor 6 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\2024-02-18_a956815c6381dce1c944fd566011517f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_a956815c6381dce1c944fd566011517f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    a6874de6ff044cad478db0ed9ef399e2

    SHA1

    c39e92fb6cf82a837c2b1f7861e666cfc82c5250

    SHA256

    a449d1ea563d681f35097deeef8c326c8ffa865ce93477534901c772513a5e1d

    SHA512

    4dd55e4f57ed18ff2c5640dfae31064dedd65c5b3bd7418098597efcf33e942051f9e23820d101ef4df880e0bf192491e9626b55daef3d27ce641f13ff51f70a

  • memory/2064-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2064-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2064-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2064-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2064-13-0x00000000005A0000-0x00000000005AF000-memory.dmp

    Filesize

    60KB

  • memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2680-19-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2680-21-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/2680-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB