General

  • Target

    jhl_service.exe

  • Size

    3.5MB

  • Sample

    240829-qfcklavfln

  • MD5

    2e5655f2cfebe6357e6388e678f3c073

  • SHA1

    f1d6b68d73a8da906368837c1cde74a26a900858

  • SHA256

    3c74031a1ddcfbff9691d2992ecd540eb82c4b781bda9ffc5125d40ec712589d

  • SHA512

    13477f0bc9a73809e7b069dc441c7fb0023178811f4fe3f39ccbc4b4c412516b612439d8025b0c79c33201c791b343cdcf7dec4a3fe7eabcd3e28b1cf520747f

  • SSDEEP

    98304:cUROmKjJqajychmAfNKcA+hv5r61JD4XEdGic/7FW:TsqzcEAfhrr0D4UdGb/hW

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.101.172:9674

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

    Log

  • keylog_path

    %Temp%

  • mouse_option

    false

  • mutex

    Rmc-54ZTI0

  • 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

      jhl_service.exe

    • Size

      3.5MB

    • MD5

      2e5655f2cfebe6357e6388e678f3c073

    • SHA1

      f1d6b68d73a8da906368837c1cde74a26a900858

    • SHA256

      3c74031a1ddcfbff9691d2992ecd540eb82c4b781bda9ffc5125d40ec712589d

    • SHA512

      13477f0bc9a73809e7b069dc441c7fb0023178811f4fe3f39ccbc4b4c412516b612439d8025b0c79c33201c791b343cdcf7dec4a3fe7eabcd3e28b1cf520747f

    • SSDEEP

      98304:cUROmKjJqajychmAfNKcA+hv5r61JD4XEdGic/7FW:TsqzcEAfhrr0D4UdGb/hW

    • 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.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks