Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2024 18:46

General

  • Target

    Bank Payment Statement case no. 7929878202.exe

  • Size

    3.6MB

  • MD5

    190baa6397866f68d5f32be873737d59

  • SHA1

    193d4b9192ec6cb64d40f0c3daefdf61ecfc8366

  • SHA256

    e8262adab0ef2d373d33fbe740a670b87607042109208b74e8ac079aebd84a1f

  • SHA512

    45496477379a2c28ec3ba69d98dcef47c583253feb2c319b6b8e3747f5efca441cb3293d10db0ee6ca8058faf378dcd9642b6b4454ef6fb7fd5268186e4978bc

  • SSDEEP

    24576:okPaP3eyBZwt1u9Q46Zo2MglJVeHOUvKng:ofTBPQlXMgl+Cng

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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Payment Statement case no. 7929878202.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Payment Statement case no. 7929878202.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\System32\svchost.exe
      "C:\Windows\System32\svchost.exe"
      2⤵
        PID:496
      • C:\Windows\System32\notepad.exe
        "C:\Windows\System32\notepad.exe"
        2⤵
          PID:904
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
          2⤵
            PID:2468
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe"
            2⤵
              PID:2840
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
              2⤵
                PID:3028
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
                2⤵
                  PID:2728
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
                  2⤵
                    PID:2872
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
                    2⤵
                      PID:2312
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
                      2⤵
                        PID:572
                      • C:\Program Files (x86)\Windows Mail\wab.exe
                        "C:\Program Files (x86)\Windows Mail\wab.exe"
                        2⤵
                          PID:840
                        • C:\Windows\regedit.exe
                          "C:\Windows\regedit.exe"
                          2⤵
                          • Runs regedit.exe
                          PID:1492
                        • C:\Windows\System32\calc.exe
                          "C:\Windows\System32\calc.exe"
                          2⤵
                            PID:912
                          • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
                            "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
                            2⤵
                            • System Location Discovery: System Language Discovery
                            PID:2892
                          • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
                            "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
                            2⤵
                              PID:1072

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/496-8-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-4-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-16-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-14-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-12-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-10-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-6-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/496-5-0x0000000000400000-0x000000000047F000-memory.dmp

                            Filesize

                            508KB

                          • memory/2692-1-0x0000000000160000-0x0000000000168000-memory.dmp

                            Filesize

                            32KB

                          • memory/2692-2-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

                            Filesize

                            9.9MB

                          • memory/2692-3-0x000000001B3F0000-0x000000001B4BE000-memory.dmp

                            Filesize

                            824KB

                          • memory/2692-0-0x000007FEF5283000-0x000007FEF5284000-memory.dmp

                            Filesize

                            4KB

                          • memory/2692-148-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

                            Filesize

                            9.9MB