Resubmissions

28/09/2022, 16:26

220928-txja9ahfdr 10

General

  • Target

    EFT PAYMENT ADVICE-CTI09272022.doc

  • Size

    272KB

  • Sample

    220928-txja9ahfdr

  • MD5

    e7015ec2d6320c2eb00a304a73c54d1d

  • SHA1

    f7f5dd9cd6d0975d8bae9a5ba460f51f28617cbc

  • SHA256

    a40007a2e46eee90ced835b786774681aabb6c8677ec86b8d999b8ba28439194

  • SHA512

    0dbde3cb93cd0599897fe7490a1373369a8bc42fc3d78a12d2afe18c62e81444f7771ed66e6cd1da959d0510fffae947e01dc1e4469396cedc7f82b7cfa66044

  • SSDEEP

    3072:9XQVvATx74hqpQUtFwGj/Ay0kVTjXLAZyNLPmWstbJU/QRRJKgdE/9Tx9zOswCET:9XAvg4hQfbbACTbyy03tbckRJK5/5Vw

Malware Config

Extracted

Family

remcos

Botnet

Septa

C2

topboysully.dvrlists.com:10171

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Septa-C812S4

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      EFT PAYMENT ADVICE-CTI09272022.doc

    • Size

      272KB

    • MD5

      e7015ec2d6320c2eb00a304a73c54d1d

    • SHA1

      f7f5dd9cd6d0975d8bae9a5ba460f51f28617cbc

    • SHA256

      a40007a2e46eee90ced835b786774681aabb6c8677ec86b8d999b8ba28439194

    • SHA512

      0dbde3cb93cd0599897fe7490a1373369a8bc42fc3d78a12d2afe18c62e81444f7771ed66e6cd1da959d0510fffae947e01dc1e4469396cedc7f82b7cfa66044

    • SSDEEP

      3072:9XQVvATx74hqpQUtFwGj/Ay0kVTjXLAZyNLPmWstbJU/QRRJKgdE/9Tx9zOswCET:9XAvg4hQfbbACTbyy03tbckRJK5/5Vw

    Score
    10/10
    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Loads dropped DLL

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks