Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 01:20

General

  • Target

    8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe

  • Size

    986KB

  • MD5

    d5da623ad42a511796d291c516a5dbb6

  • SHA1

    029ef97714317521a472f7a8770295421a585e45

  • SHA256

    8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91

  • SHA512

    eb64880cbe757026605f76d737f00ed73fb28b0580cab7a1f225295252fa3f366875e999e2493c4a7050769aa8989660ec140dc39231974f011e91001eb50acd

  • SSDEEP

    24576:xGQ3AgIk9qzYhJVbysG2iPQE2cjYkT0CdA0uYvr0TzP1R:gQQJk9xVboRPQLcfTZZRvwTzPn

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

mandope483.duckdns.org:59033

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-JPRNP1

  • 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.

  • Remcos family
  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
    "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
    • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
      "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
      2⤵
        PID:2696
      • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
        "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2728
        • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
          C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\onwswjmqbaqiyfrhupcfu"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1644
        • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
          C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\qqckpcxjpiinilnldawhxiei"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:2880
        • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
          C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\bkhvpuhldqaalzbxuljiinyrtkd"
          3⤵
            PID:2044
          • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
            C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\bkhvpuhldqaalzbxuljiinyrtkd"
            3⤵
              PID:780
            • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
              C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\bkhvpuhldqaalzbxuljiinyrtkd"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:2508

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          ead2b476a1d282c209748c9e2a3ff2bb

          SHA1

          eb132bcdd096f49b355552efd2d1423430583c7c

          SHA256

          2895dc5419c14a918965a9ff0e80353d74a9baf3f7a18a96fc2e808810fa1207

          SHA512

          e06d8b7a56c57f04148960d07e2046406dda5143ae97780f2fc94055a96d6bc2d5efb693f2cfd16b4005ec34980379d3a9cf9afe3595d0bae1113705ec1f6fcd

        • C:\Users\Admin\AppData\Local\Temp\onwswjmqbaqiyfrhupcfu

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • memory/1644-38-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1644-42-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1644-44-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2508-46-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2508-48-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2508-47-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2728-35-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-56-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-25-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-21-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-19-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2728-13-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-11-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-8-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-9-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-28-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-85-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-30-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-31-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-32-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-33-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-86-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-7-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-78-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-77-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-16-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-70-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-69-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-62-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-60-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2728-61-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2728-57-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2728-55-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2728-22-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2880-40-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2880-43-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2880-41-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2956-2-0x0000000074280000-0x000000007496E000-memory.dmp

          Filesize

          6.9MB

        • memory/2956-3-0x000000007428E000-0x000000007428F000-memory.dmp

          Filesize

          4KB

        • memory/2956-4-0x00000000003A0000-0x00000000003B2000-memory.dmp

          Filesize

          72KB

        • memory/2956-1-0x0000000000880000-0x000000000097C000-memory.dmp

          Filesize

          1008KB

        • memory/2956-5-0x0000000074280000-0x000000007496E000-memory.dmp

          Filesize

          6.9MB

        • memory/2956-6-0x0000000005350000-0x0000000005414000-memory.dmp

          Filesize

          784KB

        • memory/2956-0-0x000000007428E000-0x000000007428F000-memory.dmp

          Filesize

          4KB

        • memory/2956-29-0x0000000074280000-0x000000007496E000-memory.dmp

          Filesize

          6.9MB