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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    12/06/2024, 19:46

General

  • Target

    2024-06-12_af48c2f4cb7b12d35c45342023151cbe_cryptolocker.exe

  • Size

    92KB

  • MD5

    af48c2f4cb7b12d35c45342023151cbe

  • SHA1

    d7c5790edcda0d87e8e5f4f82a7a2d8d83661964

  • SHA256

    99e5d97835a7f9fc7ea739c4fec811fe18a2f792a2fd9b356bd7533454bd3b8c

  • SHA512

    4855fe12b4baae3418f4d1f2588d6dd20de6b136ce3ae8b45984e3f80777bdce3f5614f030b87ed6d9e9ddf7c8a055d7ce0c2e1fdabc783093e3ef86d0ed1b42

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgdd2I:AnBdOOtEvwDpj6zn

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 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\2024-06-12_af48c2f4cb7b12d35c45342023151cbe_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_af48c2f4cb7b12d35c45342023151cbe_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    92KB

    MD5

    f4790979cfb69b8551dca9071efaf578

    SHA1

    07093ac7897939b1a9ba124a4f68d2bf79ee07e2

    SHA256

    e7b661de4d1d91dfabd97e9d17ba3d764418050eb4b306f756a3d59dc4b90d18

    SHA512

    5177925b1626291f756bf8e81550450e25b17a5d88eaab2cdc98995b71a86123c140f685b2ff64379c3c81348801c5f8d3bddfa6c535d519e4c6a80a2981d290

  • memory/1156-1-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1156-0-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1156-2-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/1156-9-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1156-12-0x0000000002880000-0x000000000288F000-memory.dmp

    Filesize

    60KB

  • memory/1156-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2676-27-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2676-20-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2676-19-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2676-28-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB