Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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

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.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs regedit.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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:3048
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:2388
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
        2⤵
          PID:2616
        • C:\Windows\System32\notepad.exe
          "C:\Windows\System32\notepad.exe"
          2⤵
            PID:2416
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
            2⤵
              PID:2056
            • C:\Windows\System32\svchost.exe
              "C:\Windows\System32\svchost.exe"
              2⤵
                PID:2104
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
                2⤵
                  PID:2804
                • C:\Windows\regedit.exe
                  "C:\Windows\regedit.exe"
                  2⤵
                  • Runs regedit.exe
                  PID:2692
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe"
                  2⤵
                    PID:2852
                  • C:\Program Files (x86)\Windows Mail\wab.exe
                    "C:\Program Files (x86)\Windows Mail\wab.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2700
                  • C:\Program Files (x86)\Windows Mail\wab.exe
                    "C:\Program Files (x86)\Windows Mail\wab.exe"
                    2⤵
                      PID:2528

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • memory/2388-9-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-7-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-5-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-10-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-8-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-6-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-4-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2388-11-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2700-68-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2700-72-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/2700-83-0x0000000000400000-0x000000000047F000-memory.dmp

                    Filesize

                    508KB

                  • memory/3048-1-0x0000000000930000-0x000000000093A000-memory.dmp

                    Filesize

                    40KB

                  • memory/3048-0-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

                    Filesize

                    4KB

                  • memory/3048-3-0x000000001ABF0000-0x000000001ACC0000-memory.dmp

                    Filesize

                    832KB

                  • memory/3048-2-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

                    Filesize

                    9.9MB

                  • memory/3048-75-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

                    Filesize

                    9.9MB