General

  • Target

    5e3a1a463e8db9ecffcce81fcd53169562dc8dc0e8974e09376639aaef0e61ae.exe

  • Size

    900KB

  • Sample

    240913-bqmqzswhrd

  • MD5

    115d4b6929a1f51b902f5d59cffd3157

  • SHA1

    bad3a42297e74d234fe74cb8af7de321f840a8f5

  • SHA256

    5e3a1a463e8db9ecffcce81fcd53169562dc8dc0e8974e09376639aaef0e61ae

  • SHA512

    57384aa06de685696985d2c3fa67f35594d0e1e0dfbe21c487a9804280394dc805e65638bd1e3de15922e821d9d83e5540d73ae61ee601520896196e2f9734be

  • SSDEEP

    24576:8aXj14fNdPYDtWPHV9yyoeHzQpnVsOA9tOW:8HTwc3ro0CVO9t9

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

      5e3a1a463e8db9ecffcce81fcd53169562dc8dc0e8974e09376639aaef0e61ae.exe

    • Size

      900KB

    • MD5

      115d4b6929a1f51b902f5d59cffd3157

    • SHA1

      bad3a42297e74d234fe74cb8af7de321f840a8f5

    • SHA256

      5e3a1a463e8db9ecffcce81fcd53169562dc8dc0e8974e09376639aaef0e61ae

    • SHA512

      57384aa06de685696985d2c3fa67f35594d0e1e0dfbe21c487a9804280394dc805e65638bd1e3de15922e821d9d83e5540d73ae61ee601520896196e2f9734be

    • SSDEEP

      24576:8aXj14fNdPYDtWPHV9yyoeHzQpnVsOA9tOW:8HTwc3ro0CVO9t9

    • 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

    • 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