Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03/06/2024, 07:44

General

  • Target

    2024-06-03_c489b30c1613bf60f71f6bc81d6a82f3_cryptolocker.exe

  • Size

    91KB

  • MD5

    c489b30c1613bf60f71f6bc81d6a82f3

  • SHA1

    427718deb37efe1ff55e8cdeaed2c3bdb092b1d2

  • SHA256

    5d6f29a54e4ebee9959e286bf49ee4e3ff280edb6231c87eaba4532f14af7915

  • SHA512

    10f9c14c15b00337903441ed56e48bb4d287bae4ef5142262cca26f1ba49fd28eb2af5f8d3a778582f0dbf25e36ef5d864858a8374a97544028b38d15025a882

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAyN:n6a+1SEOtEvwDpjYYvQd2P0

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-03_c489b30c1613bf60f71f6bc81d6a82f3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-03_c489b30c1613bf60f71f6bc81d6a82f3_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    91KB

    MD5

    1cc32f094c3f4a57673425f9654fc033

    SHA1

    8d2e94ec7b62778a478eecb31c9764d8501b384b

    SHA256

    6daa110754b84c3705318b61d3e7ade22101bfd17f72709694b6e36b4ed00898

    SHA512

    e3961b4d426a93956b7b0a18081d961fef59b85596509ea84edfeeff36d3b118a8aa2536edd3c326d87b326a79c28b6aa7a2eda33b3a89ca116155bda6d6f4f3

  • memory/1036-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1036-18-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/1036-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1036-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2400-0-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2400-8-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2400-7-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2400-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/2400-14-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB