General

  • Target

    53d4ab9c429de02b7efc94d7be3e6059.bin

  • Size

    53KB

  • Sample

    230605-m6ntrsgf4s

  • MD5

    f6fb3a78d8023cd28824d7c8a4e58e32

  • SHA1

    d3d4a6964a3b2de71c503e216888b3b355028cad

  • SHA256

    7b600f8b818f4d916f8483b53e021d17b072c5267a44af5e6d3ad04b8f597751

  • SHA512

    012c4d30720e96cdd6992cf19cc3bc339795ca2c599e0dbcffc4bde547686d4e82512d9816a7c1da7cbeb7eca7dd1dc7a50df11dcd7e1af7162d247315ac37c5

  • SSDEEP

    1536:x0dKVFHhUX6WxShePy17EjuS5se0F3TTOzKg:CdKVFyX6WbPvqS5se0hq+g

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

pekonomia.duckdns.org:30861

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-B0VP4N

  • 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

      497181638d2830749115aff8751dfaddc201d4a9de50e731c7e999381575f714.exe

    • Size

      114KB

    • MD5

      53d4ab9c429de02b7efc94d7be3e6059

    • SHA1

      2dba6ac014c7115407fbd56e6367c3f57679404f

    • SHA256

      497181638d2830749115aff8751dfaddc201d4a9de50e731c7e999381575f714

    • SHA512

      a19570164b7bc47c6975b93835b408c80f7fed8a9874d398cf0227e2dd2c033d4e31f0bb332c800bab0f60073eec084a0bebac4abc6ba069aa3547c27c9622cb

    • SSDEEP

      3072:1toI3eJY6z2cQEjbCTb6TbEVDR2fxvPXj5:1aJJ9zpblEVDsvj5

    • Modifies WinLogon for persistence

    • 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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Email Collection

1
T1114

Tasks