Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2024 11:02

General

  • Target

    RFQ 412.24 10.09.exe

  • Size

    1.8MB

  • MD5

    9aefd01233c746cdcfb120001a2defd2

  • SHA1

    599bb60793602a6fd2fae402dfc06d22d5a4a868

  • SHA256

    97d26e3c4d9c3fffe1a29eb0ef84681bb843cd06223d84bc947185107be4bba0

  • SHA512

    c4c072728ac7f12c127688f189f17201d3837e62d25cd6e6aca3f002c3182aa3374535cfc04b364fe944794a6058d09cb49ec7387ae3a731e37fbbb12800d425

  • SSDEEP

    24576:2BuCDJRpDyeGykCiwDbdStLd+1yvNF2qU:2BDrxDGhDyFr

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1

  • 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
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ 412.24 10.09.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ 412.24 10.09.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
      2⤵
        PID:4048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 12
          3⤵
          • Program crash
          PID:4568
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
        2⤵
          PID:2504
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4048 -ip 4048
        1⤵
          PID:3332

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4048-4-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4756-0-0x00007FFCFF493000-0x00007FFCFF495000-memory.dmp

          Filesize

          8KB

        • memory/4756-1-0x0000026180DA0000-0x0000026180DAA000-memory.dmp

          Filesize

          40KB

        • memory/4756-2-0x00007FFCFF490000-0x00007FFCFFF51000-memory.dmp

          Filesize

          10.8MB

        • memory/4756-3-0x000002619B4C0000-0x000002619B590000-memory.dmp

          Filesize

          832KB

        • memory/4756-5-0x00007FFCFF490000-0x00007FFCFFF51000-memory.dmp

          Filesize

          10.8MB