General

  • Target

    c5793613219a782eb08205921a3f9ed97c2c74de18e0cd36008046d1a5e1288e.cab

  • Size

    919KB

  • Sample

    240213-fslc6aeh52

  • MD5

    ad45748672878683e5a4bb38e41a583d

  • SHA1

    aa644941c54bf7e76ff20ba6fc208c176ed865a0

  • SHA256

    c5793613219a782eb08205921a3f9ed97c2c74de18e0cd36008046d1a5e1288e

  • SHA512

    f24e98cefb297e3bd3c7b4b1860e9b10885e0bfb94bc8f4e22136f3fd4e86b8e1b6dbdbb4d735c3d55e1470d57f9ab26fbda922bed097e7525ef7929f336f799

  • SSDEEP

    12288:jiNoy9RjcEpxqKOZSjxfLbOOfUTYUayDtyD1TwwHFQHL6tH4jKJuPul34Va4X2tW:WNNDpMS9fOOftRD+wlCL2YOJZl3o+a2O

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

paygateme.net:2286

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

    remcos

  • mouse_option

    false

  • mutex

    Rmc-WTDTSU

  • screenshot_crypt

    true

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      RDF 803809-2024.exe

    • Size

      937KB

    • MD5

      685d0cf6a7f9a3f12b98110fcc16d717

    • SHA1

      8ec6dd9509451e038c883b8ddf8f43706b93f901

    • SHA256

      2ece57a04cf8f636ba7ac6755ad274c86e35871e66622ffd1f84a322140b2f90

    • SHA512

      7244b2574517c62b51c554755e3a6e7701aa24421e0c38b7f8999fa792ce739d9714e3bb267db8d954bc4c7937aac727f91ee702faeecf9dfdcd404d59a761c5

    • SSDEEP

      24576:eJz87bm+r7rP3yvSS8OVffAJVLZwPzHjVos1:eJz87rr7rKvzfAJV1wPCs1

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks