Analysis

  • max time kernel
    150s
  • max time network
    148s
  • 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, 14:33

General

  • Target
    92de8c03f7003ecd6293b803ff0e4bafb01132168317e05c394770b61c431d50.exe
  • Size 3.3MB
  • Sample241125-rw3bmaxpdk
  • 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 22 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 18 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:2604
    • 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:4420
    • 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:392
      • 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:852
        • \??\c:\users\admin\appdata\local\temp\._cache_synaptics.exe 
          c:\users\admin\appdata\local\temp\._cache_synaptics.exe  InjUpdate
          4⤵
          • Executes dropped EXE
          PID:2564
        • 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:3324
          • \??\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:4180
            • \??\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:1084
              • \??\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:4636
                • \??\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:4040
  • 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:2176

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

        1SE7ERK7.xlsm

        • Path C:\Users\Admin\AppData\Local\Temp\1SE7ERK7.xlsm
        • Size 17KB
        • SHA256 8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
        • MD5 SHA1 SHA512 SSDEEP

        CAF75E00

        • Path C:\Users\Admin\AppData\Local\Temp\CAF75E00
        • Size 21KB
        • SHA256 9961e43871d37a3da44f5063c039a81ddade7f383cd50517cc8aa503fcfd3591
        • MD5 SHA1 SHA512 SSDEEP

        icsys.icn.exe

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

        spoolsv.exe

        • Path \??\c:\windows\resources\spoolsv.exe
        • Size 2.6MB
        • SHA256 e937003cff0b26e5cdadadb610a418d66cf4dffd533bd256475e38d5a4c7f8d1
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path \??\c:\windows\resources\svchost.exe
        • Size 2.6MB
        • SHA256 3cf4bba3ba2efdcced1a245b5a52b4e557706e1e61498fa879f29331e3937665
        • MD5 SHA1 SHA512 SSDEEP

        explorer.exe

        • Path \??\c:\windows\resources\themes\explorer.exe
        • Size 2.6MB
        • SHA256 7955d5422bf5ec5adbd33f9078d38077ab9473f87e1373d2546d6498f2b495d4
        • MD5 SHA1 SHA512 SSDEEP

        memory/392-311-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/392-133-0x00000000023D0000-0x00000000023D1000-memory.dmp

        memory/392-360-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/392-250-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/852-192-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/852-247-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1084-243-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1084-222-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2176-256-0x00007FFB17E30000-0x00007FFB17E40000-memory.dmp

        memory/2176-260-0x00007FFB15DD0000-0x00007FFB15DE0000-memory.dmp

        memory/2176-259-0x00007FFB15DD0000-0x00007FFB15DE0000-memory.dmp

        memory/2176-254-0x00007FFB17E30000-0x00007FFB17E40000-memory.dmp

        memory/2176-255-0x00007FFB17E30000-0x00007FFB17E40000-memory.dmp

        memory/2176-258-0x00007FFB17E30000-0x00007FFB17E40000-memory.dmp

        memory/2176-257-0x00007FFB17E30000-0x00007FFB17E40000-memory.dmp

        memory/2564-201-0x0000016A5D5C0000-0x0000016A5D5CE000-memory.dmp

        memory/2604-0-0x00000000024F0000-0x00000000024F1000-memory.dmp

        memory/2604-130-0x0000000000400000-0x000000000075F000-memory.dmp

        memory/3324-246-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4040-241-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4040-236-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4180-336-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4180-251-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4180-213-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4180-377-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4420-248-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4420-127-0x0000000077174000-0x0000000077176000-memory.dmp

        memory/4420-70-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4636-333-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4636-253-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4636-231-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4636-378-0x0000000000400000-0x0000000000A16000-memory.dmp