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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/04/2024, 13:37

General

  • Target

    2024-04-06_76281cfb23622f69c118dbe3b85adf9e_cryptolocker.exe

  • Size

    66KB

  • MD5

    76281cfb23622f69c118dbe3b85adf9e

  • SHA1

    32663e7af039d096ff72ac218a2ac27c3c0241ea

  • SHA256

    b7f8c12ff845301d6bfe1c55859ebf6bed6f47f850cc6596980a17d84abb5cac

  • SHA512

    c2b3bc07015b7bff0a9b46f0a8d7f19b5acc364682f714ec7d6feacec0f33ee4868befe00c53d85758dae988a8993b9f1b9f7919b071d0fe40b278e5dacbb412

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xF6:6j+1NMOtEvwDpjr8ox8UDEpN/j6

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-04-06_76281cfb23622f69c118dbe3b85adf9e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-06_76281cfb23622f69c118dbe3b85adf9e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    66KB

    MD5

    f25d5fcc22d0351638cbb23a20c3ef33

    SHA1

    9d877a3124c6413979f2c18809bd7f329b880875

    SHA256

    cd60fde9572ea75d41b0e4c9c56ef8d5863aad063cfd636a2f94dd26b0bd22ed

    SHA512

    0c3385c2c1878fa9804779ef6bbc9b0bf5969367e358309fa734f0ca5e0d441269de3d01baeec58e904ac5a23167e527ace93182e804523d881b9e9ce0812802

  • memory/2236-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2236-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2236-2-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2236-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2236-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2536-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2536-18-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2536-20-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2536-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB