Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2023, 07:32

General

  • Target
    SecuriteInfo.com.FileRepMalware.3918.4101.exe
  • Size 1.1MB
  • Sample230111-jcy6vsbd64
  • SHA256 50a13f6bced0bda92a35b13106f74959e15a48f47d18b04bc49ee95c82482cf7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • obologs.work.gd:34346

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-5NOBMZ

  • 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.

  • ModiLoader Second Stage 1 IoCs
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.3918.4101.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.3918.4101.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4300
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\HobmhguyO.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4484
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
        3⤵
          PID:4688
        • C:\Windows\SysWOW64\xcopy.exe
          xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
          3⤵
          • Enumerates system info in registry
          PID:2432
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
          3⤵
            PID:2360
          • C:\Windows\SysWOW64\xcopy.exe
            xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
            3⤵
            • Enumerates system info in registry
            PID:2732
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
            3⤵
              PID:4020
            • C:\Windows\SysWOW64\xcopy.exe
              xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
              3⤵
              • Enumerates system info in registry
              PID:636
            • C:\Windows \System32\easinvoker.exe
              "C:\Windows \System32\easinvoker.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:884
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3552
                • 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:3596
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1 -n 6
              3⤵
              • Runs ping.exe
              PID:3316
          • C:\Users\Public\Libraries\yughmboH.pif
            C:\Users\Public\Libraries\yughmboH.pif
            2⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1212
            • C:\Users\Public\Libraries\yughmboH.pif
              C:\Users\Public\Libraries\yughmboH.pif /stext "C:\Users\Admin\AppData\Local\Temp\ozjsmdfatsffqypfwwixw"
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2672
            • C:\Users\Public\Libraries\yughmboH.pif
              C:\Users\Public\Libraries\yughmboH.pif /stext "C:\Users\Admin\AppData\Local\Temp\ybolfvquhaxsaeljnhvqhutkv"
              3⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook accounts
              PID:2488
            • C:\Users\Public\Libraries\yughmboH.pif
              C:\Users\Public\Libraries\yughmboH.pif /stext "C:\Users\Admin\AppData\Local\Temp\jvudgobvvipxdsznxshskhgtwjqs"
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3156

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              ozjsmdfatsffqypfwwixw

              • Path C:\Users\Admin\AppData\Local\Temp\ozjsmdfatsffqypfwwixw
              • Size 4KB
              • SHA256 bec9bca76621ea0f0db461945ca513d00aba466d4cf882a437a8de82075784f1
              • MD5 SHA1 SHA512 SSDEEP

              HobmhguyO.bat

              • Path C:\Users\Public\Libraries\HobmhguyO.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 109KB
              • SHA256 7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2
              • MD5 SHA1 SHA512 SSDEEP

              yughmboH.pif

              • Path C:\Users\Public\Libraries\yughmboH.pif
              • Size 118KB
              • SHA256 9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af
              • MD5 SHA1 SHA512 SSDEEP

              yughmboH.pif

              • Path C:\Users\Public\Libraries\yughmboH.pif
              • Size 118KB
              • SHA256 9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af
              • MD5 SHA1 SHA512 SSDEEP

              yughmboH.pif

              • Path C:\Users\Public\Libraries\yughmboH.pif
              • Size 118KB
              • SHA256 9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af
              • MD5 SHA1 SHA512 SSDEEP

              yughmboH.pif

              • Path C:\Users\Public\Libraries\yughmboH.pif
              • Size 118KB
              • SHA256 9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af
              • MD5 SHA1 SHA512 SSDEEP

              yughmboH.pif

              • Path C:\Users\Public\Libraries\yughmboH.pif
              • Size 118KB
              • SHA256 9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af
              • 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 109KB
              • SHA256 7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Windows \System32\netutils.dll
              • Size 109KB
              • SHA256 7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2
              • MD5 SHA1 SHA512 SSDEEP

              KDECO.bat

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

              memory/1212-179-0x0000000010000000-0x0000000010019000-memory.dmp

              memory/1212-180-0x0000000010000000-0x0000000010019000-memory.dmp

              memory/1212-181-0x0000000000640000-0x00000000006BF000-memory.dmp

              memory/1212-178-0x0000000010000000-0x0000000010019000-memory.dmp

              memory/1212-162-0x0000000000640000-0x00000000006BF000-memory.dmp

              memory/1212-175-0x0000000010000000-0x0000000010019000-memory.dmp

              memory/1212-161-0x0000000010590000-0x0000000010612000-memory.dmp

              memory/2488-170-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/2672-172-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/2672-173-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/3156-171-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/3596-163-0x00007FF953670000-0x00007FF954131000-memory.dmp

              memory/3596-155-0x00007FF953670000-0x00007FF954131000-memory.dmp

              memory/3596-154-0x000001E79D260000-0x000001E79D282000-memory.dmp

              memory/4300-132-0x00000000040F0000-0x000000000411C000-memory.dmp

              memory/4300-160-0x0000000010590000-0x0000000010612000-memory.dmp

              memory/4300-156-0x0000000010590000-0x0000000010612000-memory.dmp