Analysis

  • max time kernel
    54s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-04-2024 16:21

General

  • Target

    Sig.exe

  • Size

    2.4MB

  • MD5

    85b9954d8d5f3c814543f471e1f012f9

  • SHA1

    4f8c4132247d42d7fd21b2fad3972d2c18319210

  • SHA256

    f045bfccb64d78fca3716eaf1e03b7e4e4b53a4adb678e22d5ed2d6ba63b6ea3

  • SHA512

    47667140d38b5e43514911842ae3f81bdf42d90c7979b8ee813a95f765ba74a4b05e92c351f786836e2630f784fec232a80cee0d589e288b84108b6d1893f298

  • SSDEEP

    49152:S6bkzSYl+aFUUhf3LIE3VEa9Ml6MW0svKrZ2Z+ItVzp0:SgoL33VEa9yIQZ0tA

Score
10/10

Malware Config

Extracted

Family

remcos

Version

4.9.3 Light

Botnet

RemoteHost

C2

127.0.0.1:2404

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-52SPIJ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sig.exe
    "C:\Users\Admin\AppData\Local\Temp\Sig.exe"
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Users\Admin\AppData\Local\Temp\Sig.exe
      "C:\Users\Admin\AppData\Local\Temp\Sig.exe"
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4288

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1404-5-0x0000000000400000-0x000000000065D000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-1-0x0000000000400000-0x000000000065D000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-3-0x0000000000400000-0x000000000065D000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-0-0x0000000000400000-0x000000000065D000-memory.dmp
    Filesize

    2.4MB

  • memory/4288-21-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-24-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-9-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-10-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-11-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-12-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-13-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-14-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-15-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-16-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-17-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-18-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-19-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-20-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-4-0x00000000001D0000-0x00000000001D1000-memory.dmp
    Filesize

    4KB

  • memory/4288-22-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-23-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-8-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-25-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-26-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-27-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-28-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-29-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-30-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-31-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-32-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-33-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-34-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-35-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-36-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-37-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-38-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-39-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB

  • memory/4288-40-0x0000000000660000-0x00000000006D5000-memory.dmp
    Filesize

    468KB