Analysis

  • max time kernel
    599s
  • max time network
    585s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 14:02

General

  • Target

    QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe

  • Size

    1.3MB

  • MD5

    5c44a72a49fe4fbc94f1c1aa8cbf0ab6

  • SHA1

    d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

  • SHA256

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

  • SHA512

    d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

  • SSDEEP

    24576:ctcKivRdWnSyEHyfE75BP/+mgWdm/bTLLK6:LKmXWSy6r2mgxv

Malware Config

Extracted

Family

remcos

Botnet

SLAVES

C2

windowslavesclient.duckdns.org:1604

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-J3MJAP

  • 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

  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 17 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 17
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:364
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1692
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 24 > nul && copy "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLM_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe" "C:\Users\Admin\AppData\Roaming\Images.exe" && ping 127.0.0.1 -n 24 > nul && "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4636
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 24
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2704
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 24
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1584
      • C:\Users\Admin\AppData\Roaming\Images.exe
        "C:\Users\Admin\AppData\Roaming\Images.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4832
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:388
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\iagiojvummbalue"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:3924
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\kcmaobgwiutfwisyazx"
            5⤵
              PID:2416
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\kcmaobgwiutfwisyazx"
              5⤵
                PID:4340
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\kcmaobgwiutfwisyazx"
                5⤵
                • Accesses Microsoft Outlook accounts
                • System Location Discovery: System Language Discovery
                PID:1628
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\vwrtpurpwclsyoockjkyrf"
                5⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        4KB

        MD5

        c3c5f2de99b7486f697634681e21bab0

        SHA1

        00f90d495c0b2b63fde6532e033fdd2ade25633d

        SHA256

        76296dc29f718988107d35d0e0b835c2bf3fc7405e79e5121aa4738f82b51582

        SHA512

        7c60ffdc093de30e793d20768877f2f586bee3e948767871f9a1139252d5d2f593ba6f88ce0ed5f72c79faddb26186792df0581e4b6c84d405c44d9d12f951b8

      • C:\Users\Admin\AppData\Roaming\Images.exe

        Filesize

        1.3MB

        MD5

        5c44a72a49fe4fbc94f1c1aa8cbf0ab6

        SHA1

        d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

        SHA256

        39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

        SHA512

        d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

      • memory/388-79-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-58-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-75-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-73-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-74-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-71-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-70-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-69-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-68-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-67-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-66-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-87-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-86-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-85-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-84-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-83-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-82-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-24-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-26-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-27-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-80-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-29-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-30-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-31-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-32-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-33-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-35-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-81-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-72-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-64-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-65-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-78-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-63-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-77-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-62-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-76-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-61-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-50-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/388-53-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/388-54-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/388-55-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-56-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-57-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-60-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/388-59-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/428-6-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/428-8-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/428-0-0x000000007502E000-0x000000007502F000-memory.dmp

        Filesize

        4KB

      • memory/428-12-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/428-4-0x0000000004ED0000-0x0000000004F62000-memory.dmp

        Filesize

        584KB

      • memory/428-3-0x00000000053E0000-0x0000000005984000-memory.dmp

        Filesize

        5.6MB

      • memory/428-1-0x00000000001E0000-0x0000000000326000-memory.dmp

        Filesize

        1.3MB

      • memory/428-10-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/428-2-0x0000000004D90000-0x0000000004E2C000-memory.dmp

        Filesize

        624KB

      • memory/428-9-0x000000007502E000-0x000000007502F000-memory.dmp

        Filesize

        4KB

      • memory/428-5-0x0000000004E30000-0x0000000004E74000-memory.dmp

        Filesize

        272KB

      • memory/428-7-0x0000000005340000-0x000000000534A000-memory.dmp

        Filesize

        40KB

      • memory/1628-38-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1628-39-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1628-41-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2552-47-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2552-46-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2552-42-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3924-40-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3924-37-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3924-36-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4832-28-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4832-23-0x0000000009A40000-0x0000000009A46000-memory.dmp

        Filesize

        24KB

      • memory/4832-22-0x00000000073F0000-0x000000000740A000-memory.dmp

        Filesize

        104KB

      • memory/4832-21-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4832-20-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4832-19-0x0000000000310000-0x0000000000456000-memory.dmp

        Filesize

        1.3MB

      • memory/4832-18-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        Filesize

        7.7MB