General

  • Target

    TALEP FIYAT TEKLIFI.doc

  • Size

    17KB

  • Sample

    221005-scqddsehdk

  • MD5

    ee3bf91db33c6454ec4418b7e606c65a

  • SHA1

    6ac4f626f7d5871160aeebb893b06dfea1974b5d

  • SHA256

    1e3da537b93420e1bdb699c386d0408393df8001f23c000ab203ceec5af958c0

  • SHA512

    3a0c0e56373717f14a6adea1853dde97f861335b01c9564d76ad2cb5e34060d47c577a895f64f5581e9c8bc2590ccb3ff0e29f434f5ae7cd348442c0af55f4d5

  • SSDEEP

    384:Y8Rbax7Y98G2Cy8w/nF9bdqxzDBe/Fy1viidzAwg/nG:LRbax7An2Cy8w/NqDetylpBJ

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

27th Sept

C2

arttronova23.duckdns.org:4045

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Microsoft Security Start.exe

  • copy_folder

    Windows Secure Start

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Windows Security Health Start

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target

      TALEP FIYAT TEKLIFI.doc

    • Size

      17KB

    • MD5

      ee3bf91db33c6454ec4418b7e606c65a

    • SHA1

      6ac4f626f7d5871160aeebb893b06dfea1974b5d

    • SHA256

      1e3da537b93420e1bdb699c386d0408393df8001f23c000ab203ceec5af958c0

    • SHA512

      3a0c0e56373717f14a6adea1853dde97f861335b01c9564d76ad2cb5e34060d47c577a895f64f5581e9c8bc2590ccb3ff0e29f434f5ae7cd348442c0af55f4d5

    • SSDEEP

      384:Y8Rbax7Y98G2Cy8w/nF9bdqxzDBe/Fy1viidzAwg/nG:LRbax7An2Cy8w/NqDetylpBJ

    • Remcos

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

    • UAC bypass

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

4
T1112

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Remote System Discovery

1
T1018

Tasks