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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 19:52

General

  • Target

    2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe

  • Size

    387KB

  • MD5

    868785cb93141ffc6864556e987f8bda

  • SHA1

    0325c200f759d6888c41ecde160ac056c838fb44

  • SHA256

    317cf25f20bcc01948ea8c7213d27944445e9400d0183f8ad192ac0ece7e8aee

  • SHA512

    6c2a3454bff1de5d0d3154f7bd5e8ee9b06403c8a294e951ee1e1cddb7874f4ba9c77a7643dd404a40e7de56f94cac6de3bcaf097713a9965b8724a60240aa07

  • SSDEEP

    6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXM:nnOflT/ZFIjBz3xjTxynGUOUhXM

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\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    387KB

    MD5

    cfddd519ae58675e0c5f4b6ca013920c

    SHA1

    183fc397caabb2bbb1fa24767572af2ebbd9678f

    SHA256

    34ba3de87ea288bda9fe907175aa595095abf9990a3e69766ed6e32dafb2aaa1

    SHA512

    db4aa10768e3c04b365607e688a81ed437c69dafd6d3f356876e5689d77bdb3a3e2f4735ecc18203f3892eb336b948fc2b60fd678f00f61c96ae5418239d3d8e

  • memory/2176-15-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2176-22-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/3028-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3028-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3028-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB