Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/06/2024, 07:33

General

  • Target

    2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker.exe

  • Size

    67KB

  • MD5

    ad1d156e8bb19e69ee8d0d262537ad29

  • SHA1

    3b5e7cd61e0be42a145ce614b8112964cd62d20b

  • SHA256

    4b5565c77b6cac62f7b7c9d08b1d2d146fc11771e1399bd496ea9ffadeb09386

  • SHA512

    fcb0374d5586f8fef7f384d28da6e2649940e8b76e291790540139de693b82093620ee894e3a6f3b89f0aee8aa32cd70e0b6f5d6598fad48673c539b74b7da96

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYZ8xDyfXT:1nK6a+qdOOtEvwDpjo

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2872

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    67KB

    MD5

    affa2bac4eb8ba007608599320064592

    SHA1

    3b44758d23cd6fd3e4f3faa81141bcb2bb432b8c

    SHA256

    488496c5d862442d7c3021ad6df81f4ba7b771ce761ea7c1a12a6d737054c01a

    SHA512

    e89c1487f722a9136645c7557f43e576385785cc5ec2b1caee35145fd864f9824f0d9f37772e7017f6f6748f2945282cf321e4ed3011fbd217696cc76a85f9e3

  • memory/1040-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1040-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1040-8-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1040-1-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2872-15-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2872-17-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2872-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2872-25-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB