Analysis

  • max time kernel
    164s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2022, 10:46

General

  • Target
    b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
  • Size 1.2MB
  • Sample220811-mt2j4aged7
  • SHA256 fe6a93368c9da83d864b3f37fba5c8c01302a3d909779cb3bd6dfaed8b430fb5
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • mail.deiomino.icu:45547

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-93Q5F4

  • 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\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
    "C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
      "C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1144

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1144-137-0x0000000000400000-0x000000000047E000-memory.dmp

        memory/1144-138-0x0000000000400000-0x000000000047E000-memory.dmp

        memory/1144-139-0x0000000000400000-0x000000000047E000-memory.dmp

        memory/1144-140-0x0000000000400000-0x000000000047E000-memory.dmp

        memory/1144-141-0x0000000000400000-0x000000000047E000-memory.dmp

        memory/3908-130-0x0000000000A30000-0x0000000000B66000-memory.dmp

        memory/3908-131-0x0000000005B00000-0x00000000060A4000-memory.dmp

        memory/3908-132-0x0000000005550000-0x00000000055E2000-memory.dmp

        memory/3908-133-0x0000000005520000-0x000000000552A000-memory.dmp

        memory/3908-134-0x00000000093B0000-0x000000000944C000-memory.dmp

        memory/3908-135-0x0000000009450000-0x00000000094B6000-memory.dmp