Analysis

  • max time kernel
    598s
  • max time network
    584s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    26/10/2022, 02:34

General

  • Target
    msg001,pdf.scr
  • Size 758KB
  • Sample221026-c2eeeseegq
  • SHA256 0f11963df60499e24225a2c8485e1cf4a66f6acc27b01b3b2d637e38ba8b11fb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • STRONG

C2
  • hurricane.ydns.eu:1972

  • official.ydns.eu:1972

  • Officialsw.chickenkiller.com:1972

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

    tughvahyehkgjvkji-A7VCFQ

  • 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

  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\msg001,pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\msg001,pdf.scr" /S
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\AjbulntbO.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3328
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
        3⤵
          PID:2192
        • C:\Windows\SysWOW64\xcopy.exe
          xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
          3⤵
          • Enumerates system info in registry
          PID:1304
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
          3⤵
            PID:2572
          • C:\Windows\SysWOW64\xcopy.exe
            xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
            3⤵
            • Enumerates system info in registry
            PID:2196
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
            3⤵
              PID:348
            • C:\Windows\SysWOW64\xcopy.exe
              xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
              3⤵
              • Enumerates system info in registry
              PID:4968
            • C:\Windows \System32\easinvoker.exe
              "C:\Windows \System32\easinvoker.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1416
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:5016
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                  5⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2796
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1 -n 6
              3⤵
              • Runs ping.exe
              PID:5112
          • C:\Windows\SysWOW64\colorcpl.exe
            C:\Windows\System32\colorcpl.exe
            2⤵
            • Suspicious behavior: GetForegroundWindowSpam
            PID:4240

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              AjbulntbO.bat

              • Path C:\Users\Public\Libraries\AjbulntbO.bat
              • Size 411B
              • SHA256 5a11c5641c476891aa30e7ecfa57c2639f6827d8640061f73e9afec0adbbd7d2
              • MD5 SHA1 SHA512

              KDECO.bat

              • Path C:\Users\Public\Libraries\KDECO.bat
              • Size 155B
              • SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
              • MD5 SHA1 SHA512

              easinvoker.exe

              • Path C:\Users\Public\Libraries\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Users\Public\Libraries\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              easinvoker.exe

              • Path C:\Windows \System32\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              easinvoker.exe

              • Path C:\Windows \System32\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Windows \System32\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              KDECO.bat

              • Path C:\windows \system32\KDECO.bat
              • Size 155B
              • SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
              • MD5 SHA1 SHA512

              netutils.dll

              • Path \Windows \System32\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              memory/2648-138-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-167-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-132-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-133-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-134-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-135-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-136-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-115-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-137-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-140-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-139-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-141-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-142-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-143-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-144-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-145-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-146-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-147-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-148-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-149-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-150-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-151-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-152-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-153-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-154-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-155-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-156-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-157-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-158-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-159-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-160-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-161-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-162-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-163-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-164-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-165-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-166-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-126-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-168-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-169-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-170-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-171-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-172-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-173-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-174-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-175-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-176-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-177-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-178-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-116-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-131-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-130-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-129-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-128-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-127-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-125-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-124-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-123-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-117-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-122-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-121-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-120-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-119-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2648-118-0x0000000077C70000-0x0000000077DFE000-memory.dmp

              memory/2796-624-0x00000212D8950000-0x00000212D8972000-memory.dmp

              memory/2796-627-0x00000212F1000000-0x00000212F1076000-memory.dmp

              memory/4240-1001-0x0000000010590000-0x0000000010612000-memory.dmp

              memory/4240-1053-0x0000000000400000-0x000000000047F000-memory.dmp

              memory/4240-1067-0x0000000000400000-0x000000000047F000-memory.dmp