General

  • Size

    226B

  • Sample

    210929-ap75vsddan

  • MD5

    fce037aad780c08c85db2f24bff80cfa

  • SHA1

    881fc64b6fe1dad9459327e931399635fc1fe27c

  • SHA256

    cb77b93150cb0f7fe65ce8a7e2a5781e727419451355a7736db84109fa215a89

  • SHA512

    cc3b7adfa276163c33fd5cb62dacf0ae754d53d749b0ed95686a42344ecd1cb94a712f89cc6a2ddaae2eaff90a6ac9913fd368ce196612a2a861fba9eecfbb95

Malware Config

Extracted

Family

remcos

Version

3.2.1 Pro

Botnet

RemoteHost

C2

snackebay.ddns.net:7676

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
Remasascos-LVXDHO
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
take_screenshot_title
notepad;solitaire;

Targets

    • Target

      invoice_2818144.vbs

    • Size

      226B

    • MD5

      fce037aad780c08c85db2f24bff80cfa

    • SHA1

      881fc64b6fe1dad9459327e931399635fc1fe27c

    • SHA256

      cb77b93150cb0f7fe65ce8a7e2a5781e727419451355a7736db84109fa215a89

    • SHA512

      cc3b7adfa276163c33fd5cb62dacf0ae754d53d749b0ed95686a42344ecd1cb94a712f89cc6a2ddaae2eaff90a6ac9913fd368ce196612a2a861fba9eecfbb95

    • Registers COM server for autorun

    • Remcos

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

    • Blocklisted process makes network request

    • Drops startup file

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Privilege Escalation