Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-10-2022 13:18

General

  • Target

    Inquiry - HKAS2200989.exe

  • Size

    1.2MB

  • MD5

    89a87ed8092d8339f82348ed81e89e37

  • SHA1

    dff9f26f6e7a1f5ac89e16d77fb9dc06aeebc335

  • SHA256

    d99b0d328a7e19981cc4e1dcfbdeb336c84577a020bd4a84d72d28a7930282ea

  • SHA512

    9ef03f2201a1a87ccd368d493031391f936fd336c41c9a17707631fe96b5c653704d35240f6ecc31abdc470906a22dd8d3d7736e468b11fdb4416610a031d57a

  • SSDEEP

    24576:nag2aA9imMt8WlH9HIuUHPtd6L3IFTLgcNseU5WL+tAtQy4A:ag2rhMtLouUHPtd6LknHGeU5WvX

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

valvesco.duckdns.org:5050

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-48V73L

  • 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

Signatures

  • Remcos

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry - HKAS2200989.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry - HKAS2200989.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Users\Admin\AppData\Local\Temp\Inquiry - HKAS2200989.exe
      "C:\Users\Admin\AppData\Local\Temp\Inquiry - HKAS2200989.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2060

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/448-132-0x00000000000A0000-0x00000000001E4000-memory.dmp
    Filesize

    1.3MB

  • memory/448-133-0x0000000005110000-0x00000000056B4000-memory.dmp
    Filesize

    5.6MB

  • memory/448-134-0x0000000004C00000-0x0000000004C92000-memory.dmp
    Filesize

    584KB

  • memory/448-135-0x0000000004B90000-0x0000000004B9A000-memory.dmp
    Filesize

    40KB

  • memory/448-136-0x000000000AE30000-0x000000000AECC000-memory.dmp
    Filesize

    624KB

  • memory/448-137-0x000000000AED0000-0x000000000AF36000-memory.dmp
    Filesize

    408KB

  • memory/2060-138-0x0000000000000000-mapping.dmp
  • memory/2060-139-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2060-140-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2060-141-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2060-142-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2060-143-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB