Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2024, 14:29

General

  • Target
    92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe
  • Size 3.3MB
  • Sample241125-rt3vdaxnfj
  • SHA256 92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xred

C2
  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 7 IoCs
  • Checks BIOS information in registry 2 TTPs 14 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 9 IoCs
  • Themida packer 20 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Checks whether UAC is enabled 1 TTPs 7 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe
    "C:\Users\Admin\AppData\Local\Temp\92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\Temp\._cache_92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      PID:1244
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2888
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4808
        • \??\c:\users\admin\appdata\local\temp\._cache_synaptics.exe 
          c:\users\admin\appdata\local\temp\._cache_synaptics.exe  InjUpdate
          4⤵
          • Executes dropped EXE
          PID:4184
        • C:\Windows\Resources\Themes\icsys.icn.exe
          C:\Windows\Resources\Themes\icsys.icn.exe
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3632
          • \??\c:\windows\resources\themes\explorer.exe
            c:\windows\resources\themes\explorer.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Adds Run key to start application
            • Checks whether UAC is enabled
            • Drops file in System32 directory
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1388
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe SE
              6⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Checks whether UAC is enabled
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Drops file in Windows directory
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:2684
              • \??\c:\windows\resources\svchost.exe
                c:\windows\resources\svchost.exe
                7⤵
                • Modifies visiblity of hidden/system files in Explorer
                • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                • Checks BIOS information in registry
                • Executes dropped EXE
                • Adds Run key to start application
                • Checks whether UAC is enabled
                • Drops file in System32 directory
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1696
                • \??\c:\windows\resources\spoolsv.exe
                  c:\windows\resources\spoolsv.exe PR
                  8⤵
                  • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                  • Checks BIOS information in registry
                  • Executes dropped EXE
                  • Checks whether UAC is enabled
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of SetWindowsHookEx
                  PID:3572
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2664

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Synaptics.exe

        • Path C:\ProgramData\Synaptics\Synaptics.exe
        • Size 3.3MB
        • SHA256 92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50
        • MD5 SHA1 SHA512 SSDEEP

        ._cache_92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe

        • Path C:\Users\Admin\AppData\Local\Temp\._cache_92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe
        • Size 2.6MB
        • SHA256 70594f83aa785ddeec6a020a9d63f7b1e73b343c318dbff5ab4e6e1cde40a09f
        • MD5 SHA1 SHA512 SSDEEP

        ._cache_synaptics.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\._cache_synaptics.exe 
        • Size 29KB
        • SHA256 927004a7ed771954853acfd331baf0a2d74c84037d4adff5a4a65fb1b287e586
        • MD5 SHA1 SHA512 SSDEEP

        X9Tb9Bjp.xlsm

        • Path C:\Users\Admin\AppData\Local\Temp\X9Tb9Bjp.xlsm
        • Size 17KB
        • SHA256 8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
        • MD5 SHA1 SHA512 SSDEEP

        icsys.icn.exe

        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 2.6MB
        • SHA256 3ec7a56ade24d41b83b3105e6987966fc6ee47c0c7a6f585b73540cff0739f8f
        • MD5 SHA1 SHA512 SSDEEP

        spoolsv.exe

        • Path C:\Windows\Resources\spoolsv.exe
        • Size 2.6MB
        • SHA256 849b101554e1c6d43ffc0b118d04ad0e13e56cdf702a149ced7e125e3ac8bc19
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path \??\c:\windows\resources\svchost.exe
        • Size 2.6MB
        • SHA256 466cae3e9641863d61c0c47ca66be711b72e5dac9254432b50a5b540e3e721fe
        • MD5 SHA1 SHA512 SSDEEP

        explorer.exe

        • Path \??\c:\windows\resources\themes\explorer.exe
        • Size 2.6MB
        • SHA256 a150338245bf1dfe5399534eb41f8a143f7fd98ec5aae5f6f39ae8c5f1081df3
        • MD5 SHA1 SHA512 SSDEEP

        memory/1244-70-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1244-119-0x0000000077894000-0x0000000077896000-memory.dmp

        memory/1244-265-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1388-272-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1388-220-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1388-323-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1696-239-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1696-277-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1696-300-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2664-198-0x00007FFDD87D0000-0x00007FFDD87E0000-memory.dmp

        memory/2664-196-0x00007FFDD87D0000-0x00007FFDD87E0000-memory.dmp

        memory/2664-207-0x00007FFDD5E70000-0x00007FFDD5E80000-memory.dmp

        memory/2664-197-0x00007FFDD87D0000-0x00007FFDD87E0000-memory.dmp

        memory/2664-208-0x00007FFDD5E70000-0x00007FFDD5E80000-memory.dmp

        memory/2664-200-0x00007FFDD87D0000-0x00007FFDD87E0000-memory.dmp

        memory/2664-201-0x00007FFDD87D0000-0x00007FFDD87E0000-memory.dmp

        memory/2684-229-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2684-253-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2888-131-0x0000000000920000-0x0000000000921000-memory.dmp

        memory/2888-271-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/2888-269-0x0000000000920000-0x0000000000921000-memory.dmp

        memory/2888-322-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/2888-280-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/2968-0-0x0000000002600000-0x0000000002601000-memory.dmp

        memory/2968-130-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/3572-251-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/3572-245-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/3632-257-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4184-206-0x000001505B8A0000-0x000001505B8AE000-memory.dmp

        memory/4808-192-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4808-256-0x0000000000400000-0x0000000000A16000-memory.dmp