General

  • Target

    3639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32

  • Size

    888KB

  • Sample

    220815-ygkxcsfaep

  • MD5

    7f93ebca40acd75da0b0a599e0eb5276

  • SHA1

    255df64f2dc464e5e89cd20d633605a5c02e9500

  • SHA256

    3639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32

  • SHA512

    9956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5

Malware Config

Extracted

Family

remcos

Botnet

XP

C2

xpremcuz300622.ddns.net:3542

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    oos.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Remcos-MMP2I7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    kkl

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      3639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32

    • Size

      888KB

    • MD5

      7f93ebca40acd75da0b0a599e0eb5276

    • SHA1

      255df64f2dc464e5e89cd20d633605a5c02e9500

    • SHA256

      3639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32

    • SHA512

      9956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5

    • Remcos

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Tasks