General

  • Target

    Quotation.xls

  • Size

    317KB

  • Sample

    240408-kz93bagg9s

  • MD5

    1add9332fa33abaa1f5253a056912f46

  • SHA1

    99541661cad68c112b9a6c68708868cc3231cdb8

  • SHA256

    aa82e4e3c64666daaf9da5f189250e969a04e9d7123e068af593b954139526b5

  • SHA512

    da82bc5b6d71cbed3f579e227013c19d88ee2dabf2043d76089c3f609bdeb8d3677ce7faf790d752b7a179d99f58897ea32370f7ed752223147b460a56f74582

  • SSDEEP

    6144:4jctZunlY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVGZMI3XmTJPukl5rAFc+:4jctsM3bVGZMInKPvBocrFs

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

shgoini.com:30902

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-7XHN5V

  • 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

      Quotation.xls

    • Size

      317KB

    • MD5

      1add9332fa33abaa1f5253a056912f46

    • SHA1

      99541661cad68c112b9a6c68708868cc3231cdb8

    • SHA256

      aa82e4e3c64666daaf9da5f189250e969a04e9d7123e068af593b954139526b5

    • SHA512

      da82bc5b6d71cbed3f579e227013c19d88ee2dabf2043d76089c3f609bdeb8d3677ce7faf790d752b7a179d99f58897ea32370f7ed752223147b460a56f74582

    • SSDEEP

      6144:4jctZunlY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVGZMI3XmTJPukl5rAFc+:4jctsM3bVGZMInKPvBocrFs

    Score
    10/10
    • Remcos

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

3
T1012

System Information Discovery

2
T1082

Tasks