General

  • Target

    676223b89c84ef5893dc5828a91e8b833878659a2c697c086714ecc21f35c740

  • Size

    265KB

  • Sample

    240417-qf6hnsgh28

  • MD5

    7649bfb797a7a6ba67e8744f045be121

  • SHA1

    2326ba87d38928c7ef76e35e2ecdf4532c5ef09d

  • SHA256

    676223b89c84ef5893dc5828a91e8b833878659a2c697c086714ecc21f35c740

  • SHA512

    cae4e222a482695ad3b0c7dd1880444b5f2121d3d11a693420ac1bc4c529c3678e26aa475c0836c237b56fad7bba76d83e2b50b3d2a14978105971c376cd15cf

  • SSDEEP

    6144:FKpfBDDujGArY7x5sa902poCqUwupQPrE37W6phYoIdXNEt:FKsacEx5L0C2LaQT6VIdXqt

Malware Config

Extracted

Family

remcos

Botnet

Remote

C2

leetboy.dynuddns.net:1998

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    svcs.exe

  • copy_folder

    microsofts

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    logsa

  • mouse_option

    false

  • mutex

    Rmc-3XK1S0

  • 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

      03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7.exe

    • Size

      483KB

    • MD5

      06f5b8dffc6c138828adbc7f29cfc7f0

    • SHA1

      b59ef5d613a1e49c7034c3ee05780ce054ca0054

    • SHA256

      03ba551339062106448ff58cbc393338483439513ec8439497bf47153e13f4b7

    • SHA512

      e706a0b3b1981cac8ddcf81482b306b4538fbfbf5c332f2b484f8c503b66d73cd09ffaab0515ecb2063d1e4a27dc30a662cc0be4f5287d2982cfbb47c7dad893

    • SSDEEP

      6144:aXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZDAXYcNx5Gv:aX7tPMK8ctGe4Dzl4h2QnuPs/ZDIcv

    • Remcos

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks