Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24-01-2024 03:31

General

  • Target

    2024-01-24_3daae42d1a63b366a6756ac6b28b99c9_cryptolocker.exe

  • Size

    127KB

  • MD5

    3daae42d1a63b366a6756ac6b28b99c9

  • SHA1

    5cdd441f348254090c141373d27ab0257dbda95f

  • SHA256

    4061d2bdd102f07468d5b1162065e4a1431cd7df4fe7440b1633074ee9a3405a

  • SHA512

    7ff01f9dbe930678575f7f5b554d2801cc9e22a76e800f4d83bc4a70cc9eb2d7d0e7a1603e1a656e13d941518d23721a0b1c94a3913ea042705b7f1db5cd823c

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1eT:AnBdOOtEvwDpj6zZ

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\2024-01-24_3daae42d1a63b366a6756ac6b28b99c9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-24_3daae42d1a63b366a6756ac6b28b99c9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    127KB

    MD5

    0dcd69254625505867f4356bff920ce4

    SHA1

    780561a22ad64c7e6001b7a82c3342169d6ec139

    SHA256

    40e70532e7ac5b83bd643f7d12721fbe6679cc9e79cf5c9de86ff19d27b83d46

    SHA512

    8bd2eda41c1c0e7ff2ff29de4e9657ea48407ad82bea820e908bf73a83e82b00d9cb5be1d2bbfda55977ce428723e0fde3369db5c60573fe6f0636661ad04fda

  • memory/2772-1-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2772-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2772-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2772-2-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2772-16-0x0000000002480000-0x000000000248F000-memory.dmp

    Filesize

    60KB

  • memory/2772-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2888-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2888-19-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2888-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB