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General

  • Target

    RQF_Athens_plant_SV317653.doc

  • Size

    189KB

  • Sample

    231029-vf9ybage6w

  • MD5

    5441dcbe6b5d05ddb25e88ab953063d6

  • SHA1

    c1fa90f8178de83f232b6520e43b9dbd43241a07

  • SHA256

    247629d8098e23046e3cf340b224420b00e760f10fac40fc75af9ae4de995259

  • SHA512

    3b2e94f6cdeed8ae55ef7feed575c653c03e15ba4054998c861487f6316541b7b406e978454dfb1ad27604764eaaf3c1ad7e4beaad808f445dcc9ff99e652cfd

  • SSDEEP

    768:1wAbZSibMX9gRWj3pkScGvt9nncglN/oBxNmphK:1wAlR2kSF3n9oUphK

Malware Config

Extracted

Family

remcos

Botnet

29122021

C2

29122021.sytes.net:6110

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-3HZY53

  • 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

      RQF_Athens_plant_SV317653.doc

    • Size

      189KB

    • MD5

      5441dcbe6b5d05ddb25e88ab953063d6

    • SHA1

      c1fa90f8178de83f232b6520e43b9dbd43241a07

    • SHA256

      247629d8098e23046e3cf340b224420b00e760f10fac40fc75af9ae4de995259

    • SHA512

      3b2e94f6cdeed8ae55ef7feed575c653c03e15ba4054998c861487f6316541b7b406e978454dfb1ad27604764eaaf3c1ad7e4beaad808f445dcc9ff99e652cfd

    • SSDEEP

      768:1wAbZSibMX9gRWj3pkScGvt9nncglN/oBxNmphK:1wAlR2kSF3n9oUphK

    • Remcos

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks