General

  • Target

    19092024_0947_18092024_HBL10909LIT266NR5272RBL2021PRD66178278_LAX2778.PDF.zip

  • Size

    1KB

  • Sample

    240919-lsfesssbnh

  • MD5

    36be864fe02b987b88765a4c52145f9b

  • SHA1

    9eff5d549c66b257d7873553f09a1d094963c7ad

  • SHA256

    0457b017454ce74f47f18b83fdf0af7e6b2f075eafa9f1a579068a8c440ecb46

  • SHA512

    f96d21cf8ef5dbe7a00f6a004bd46db735989cf4fae2483c47cab08565d8c4e12ea3b8751cd6c4d51eab1c3c875120c4bf065fcc9d3f5fb0ae3a250037be71b9

Malware Config

Extracted

Family

remcos

Botnet

Sept 03 2024

C2

salonirang.duckdns.org:54604

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

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    bookmark

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-SPKD1X

  • 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

      HBL10909LIT266NR5272RBL2021PRD66178278_LAX2778.PDF/HBL10909LIT266NR5272RBL2021PRD66178278_LAX2778.PDF.lnk

    • Size

      2KB

    • MD5

      b3173ef1cf4572a76e159dc513e3fc31

    • SHA1

      dbb727b41a95e6976afb742741af16952467af00

    • SHA256

      82277e734f339a7fce08aac2b342fae94e20f3349a568b839d39ccd3a81cc215

    • SHA512

      3e479a063085634ccce4bd04645c16c61ef357f44a97a71be95abbed4e30eca27fe661e302e04f9d699dcf7454f6ee0b15304f02e49f7ad8d815db65b64f8909

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks