Resubmissions

03-01-2025 18:12

250103-wtdygawnhv 10

03-01-2025 18:09

250103-wrsc3swnbz 9

General

  • Target

    PolarBoot.exe

  • Size

    1KB

  • Sample

    250103-wtdygawnhv

  • MD5

    23eb8f9e7d4b2191a925c0acec78d846

  • SHA1

    023ea9d53ad1d26695c7f9b9f655a8b6bf627eb4

  • SHA256

    1d2c73bff499484b33b1457320ff967d48469a96ff41874075bd4e48b6f72906

  • SHA512

    c638e22185d10767e6025d444f912be71292c022e8f483efadab31adc6f1a8210922527d2adbc880b99e27941b1eece8960253f28d50a771df8c079e160a23d8

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

nickman12-46565.portmap.io:46565

nickman12-46565.portmap.io:1735

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Userdata.exe

  • copy_folder

    Userdata

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %WinDir%\System32

  • mouse_option

    false

  • mutex

    remcos_vcexssuhap

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

metasploit

Version

windows/download_exec

C2

http://149.129.72.37:23456/SNpK

Attributes
  • headers User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; NP09; NP09; MAAU)

Extracted

Family

warzonerat

C2

168.61.222.215:5400

Targets

    • Target

      PolarBoot.exe

    • Size

      1KB

    • MD5

      23eb8f9e7d4b2191a925c0acec78d846

    • SHA1

      023ea9d53ad1d26695c7f9b9f655a8b6bf627eb4

    • SHA256

      1d2c73bff499484b33b1457320ff967d48469a96ff41874075bd4e48b6f72906

    • SHA512

      c638e22185d10767e6025d444f912be71292c022e8f483efadab31adc6f1a8210922527d2adbc880b99e27941b1eece8960253f28d50a771df8c079e160a23d8

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Metasploit family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Remcos family

    • UAC bypass

    • WarzoneRat, AveMaria

      WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

    • Warzonerat family

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Warzone RAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • A potential corporate email address has been identified in the URL: [email protected]

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks