General

  • Target

    na.hta

  • Size

    129KB

  • Sample

    241015-rxz8natfjk

  • MD5

    b256926cd54c4c7a2a0f708d20d24217

  • SHA1

    6e4cdcfd55eb6b1b865a337e4197471e8df8d997

  • SHA256

    bf0cfe7666b1d511b4664b0589b2f4e50a11ebdee55fe32c9ca5238d11303cda

  • SHA512

    763e4679a28f7d6be17af3976ea018ebeeaba7e0ddaef210ca2d5ed510b44397e26cb132e72c62e20690b159400f0efaa3d65fc2bce953c2cc5ae4e98587ea43

  • SSDEEP

    48:7oagpd7Ah23jxgm6FXtIS/8m6FoltIS/1n0j+2xsmT599Ddao9aWIVUUXm6FLm6j:Eam7Ro/B/CjlvtfYo9JCVm3/eb7T

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/CryptersAndToolsOficial/ZIP/refs/heads/main/DetahNote_V.jpg%20

exe.dropper

https://raw.githubusercontent.com/CryptersAndToolsOficial/ZIP/refs/heads/main/DetahNote_V.jpg%20

Extracted

Family

remcos

Botnet

HiddenHost

C2

204.10.160.167:63749

hiddenhost.duckdns.org:6374

chhidden.duckdns.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    rcbook

  • mouse_option

    false

  • mutex

    Rmc-4XZH3C

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      na.hta

    • Size

      129KB

    • MD5

      b256926cd54c4c7a2a0f708d20d24217

    • SHA1

      6e4cdcfd55eb6b1b865a337e4197471e8df8d997

    • SHA256

      bf0cfe7666b1d511b4664b0589b2f4e50a11ebdee55fe32c9ca5238d11303cda

    • SHA512

      763e4679a28f7d6be17af3976ea018ebeeaba7e0ddaef210ca2d5ed510b44397e26cb132e72c62e20690b159400f0efaa3d65fc2bce953c2cc5ae4e98587ea43

    • SSDEEP

      48:7oagpd7Ah23jxgm6FXtIS/8m6FoltIS/1n0j+2xsmT599Ddao9aWIVUUXm6FLm6j:Eam7Ro/B/CjlvtfYo9JCVm3/eb7T

    • Remcos

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

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Evasion via Device Credential Deployment

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks