Analysis

  • max time kernel
    141s
  • max time network
    131s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20/11/2024, 16:49

General

  • Target
    down.exe
  • Size 1.8MB
  • Sample241120-vb22xazgll
  • SHA256 59ac4d3651037ac2f0def7035bf845a178e4420b3ce1df183f40b230e1fc0d32
  • 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

  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\down.exe
    "C:\Users\Admin\AppData\Local\Temp\down.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\._cache_down.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_down.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4984
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2384
  • 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:2152

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Synaptics.exe

        • Path C:\ProgramData\Synaptics\Synaptics.exe
        • Size 1.8MB
        • SHA256 59ac4d3651037ac2f0def7035bf845a178e4420b3ce1df183f40b230e1fc0d32
        • MD5 SHA1 SHA512 SSDEEP

        ._cache_down.exe

        • Path C:\Users\Admin\AppData\Local\Temp\._cache_down.exe
        • Size 1.1MB
        • SHA256 717c75dcbd4862e3f5c1a744fc445385bd7b920496988b3759ee6a47b5d3e080
        • MD5 SHA1 SHA512 SSDEEP

        6C975E00

        • Path C:\Users\Admin\AppData\Local\Temp\6C975E00
        • Size 22KB
        • SHA256 e4607656650940dbbad2d36dc313bdd371b23a523b3eae604ced565b61e3a6b0
        • MD5 SHA1 SHA512 SSDEEP

        gNtwYF4e.xlsm

        • Path C:\Users\Admin\AppData\Local\Temp\gNtwYF4e.xlsm
        • Size 17KB
        • SHA256 8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
        • MD5 SHA1 SHA512 SSDEEP

        config.ini

        • Path \??\c:\¹·µ°¸¨Öú\config.ini
        • Size 19B
        • SHA256 7ed1fb9b12cc25b6c9e92b547eb888e0cadca620ec71508f0a69b840cb8ea0e4
        • MD5 SHA1 SHA512

        memory/2152-189-0x00007FF8AAC30000-0x00007FF8AAC40000-memory.dmp

        memory/2152-191-0x00007FF8AAC30000-0x00007FF8AAC40000-memory.dmp

        memory/2152-192-0x00007FF8AAC30000-0x00007FF8AAC40000-memory.dmp

        memory/2152-193-0x00007FF8AAC30000-0x00007FF8AAC40000-memory.dmp

        memory/2152-194-0x00007FF8A8090000-0x00007FF8A80A0000-memory.dmp

        memory/2152-195-0x00007FF8A8090000-0x00007FF8A80A0000-memory.dmp

        memory/2152-190-0x00007FF8AAC30000-0x00007FF8AAC40000-memory.dmp

        memory/2860-0-0x0000000002440000-0x0000000002441000-memory.dmp

        memory/2860-127-0x0000000000400000-0x00000000005D0000-memory.dmp

        memory/4924-237-0x0000000000400000-0x00000000005D0000-memory.dmp

        memory/4924-268-0x0000000000400000-0x00000000005D0000-memory.dmp