General

  • Target

    BNE400266900B - RLS SO# W317pdf.scr.exe

  • Size

    911KB

  • Sample

    240924-md8y8svamg

  • MD5

    b5d9738bbe1f9563cdc8808c96135415

  • SHA1

    d29d5768719a3bf4381293775af31d5bcdf11ca3

  • SHA256

    9c1dd67562324157ceab4d8e050c84150afc6ddff6aec72206ab437c31aac7bb

  • SHA512

    fac077ca47baa5250a3092e50568e14447e7ac00b4cadb766736c5bacd38b86ae4679c1d63508b9b0ceab808d2ce5df4384d88cf9e6fe31d65f165e13c60d1ee

  • SSDEEP

    24576:q2IgEfML+PtaSdOHOvY8r4A7L1r/6A4hhqIU1Xw0A6oC:q2skSoOQS4A7L1ri6r1XpBT

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Adobe.exe

  • copy_folder

    Adobe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Adobe-OTOIRK

  • 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

      BNE400266900B - RLS SO# W317pdf.scr.exe

    • Size

      911KB

    • MD5

      b5d9738bbe1f9563cdc8808c96135415

    • SHA1

      d29d5768719a3bf4381293775af31d5bcdf11ca3

    • SHA256

      9c1dd67562324157ceab4d8e050c84150afc6ddff6aec72206ab437c31aac7bb

    • SHA512

      fac077ca47baa5250a3092e50568e14447e7ac00b4cadb766736c5bacd38b86ae4679c1d63508b9b0ceab808d2ce5df4384d88cf9e6fe31d65f165e13c60d1ee

    • SSDEEP

      24576:q2IgEfML+PtaSdOHOvY8r4A7L1r/6A4hhqIU1Xw0A6oC:q2skSoOQS4A7L1ri6r1XpBT

    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks