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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 06:43

General

  • Target

    2024-02-25_ee21fde179d00d0e84e69b3b0fe89a7e_cryptolocker.exe

  • Size

    104KB

  • MD5

    ee21fde179d00d0e84e69b3b0fe89a7e

  • SHA1

    4190039fbd1bc4d0877fce6ce51e3b1f16babff8

  • SHA256

    a38eb16c106eb7fe42337c3f883c41a1d0e152931f94ab2306ad93d1c3bb6ba0

  • SHA512

    a7d1ee87d892d8f74e7c9655cbc99070e4d7390dddbe428b9fddd1fe4bf6b2f0f577432261212068aef2f832df379576c3f471737487c1310a61905e3050e833

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6Gks9:1nK6a+qdOOtEvwDpj9

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) 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\2024-02-25_ee21fde179d00d0e84e69b3b0fe89a7e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_ee21fde179d00d0e84e69b3b0fe89a7e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    104KB

    MD5

    16f050c93e04351916df5cfb735deaf7

    SHA1

    6c52bba6bd43762f9287ff611f579aea7557c5d2

    SHA256

    148782b0e6a703332c6c74c717256f473e25f68a36cd6aa30daad848382d59c6

    SHA512

    5ff105fac5497ad2a115920ea5c2a3431f18b5034ab84cf098f843387c41a52d6850f294046f64599523836ff22875aad8bf9124f90abb155492413fdf69671a

  • memory/1052-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1052-1-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/1052-3-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/1052-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1052-15-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1052-14-0x0000000002480000-0x0000000002490000-memory.dmp

    Filesize

    64KB

  • memory/2488-17-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2488-19-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2488-20-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2488-27-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB