Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • submitted
    04/06/2024, 20:03

General

  • Target
    x/X_Attacker.exe
  • Sample240604-ysp1fsae73

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
  • Loads dropped DLL 9 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.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\x\X_Attacker.exe
    "C:\Users\Admin\AppData\Local\Temp\x\X_Attacker.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\x\._cache_X_Attacker.exe
      "C:\Users\Admin\AppData\Local\Temp\x\._cache_X_Attacker.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\system32\cmd.exe
        "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\C50.tmp\C51.tmp\C52.bat C:\Users\Admin\AppData\Local\Temp\x\._cache_X_Attacker.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2112
        • C:\Users\Admin\AppData\Local\Temp\x\data\Main.exe
          main.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2428
          • C:\Users\Admin\AppData\Local\Temp\x\data\Main.exe
            main.exe
            5⤵
            • Loads dropped DLL
            PID:2064
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2624
      • C:\Users\Admin\AppData\Local\Temp\x\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\x\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2884
        • C:\Windows\system32\cmd.exe
          "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\E24.tmp\E25.tmp\E26.bat C:\Users\Admin\AppData\Local\Temp\x\._cache_Synaptics.exe InjUpdate"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2004
          • C:\Users\Admin\AppData\Local\Temp\x\data\Main.exe
            main.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1528
            • C:\Users\Admin\AppData\Local\Temp\x\data\Main.exe
              main.exe
              6⤵
              • Loads dropped DLL
              PID:1136

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Synaptics.exe

        • Path C:\ProgramData\Synaptics\Synaptics.exe
        • Size 999KB
        • SHA256 0ad39860802e556879d212d6094a52d220722bf669f5d35f12bf2e3f3a4361ab
        • MD5 SHA1 SHA512 SSDEEP

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        C52.bat

        • Path C:\Users\Admin\AppData\Local\Temp\C50.tmp\C51.tmp\C52.bat
        • Size 57B
        • SHA256 5dd0218f3cd02bbd0c131c8cc89eb3c92765d11163f32792a9245ac2894542cf
        • MD5 SHA1 SHA512

        python312.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI24282\python312.dll
        • Size 6.6MB
        • SHA256 c98ba3354a7d1f69bdca42560feec933ccba93afcc707391049a065e1079cddb
        • MD5 SHA1 SHA512 SSDEEP

        ._cache_X_Attacker.exe

        • Path \Users\Admin\AppData\Local\Temp\x\._cache_X_Attacker.exe
        • Size 254KB
        • SHA256 085f91ae38229fe12ea108f29e19ed1018387018da2c0336bcc9ffa3de249365
        • MD5 SHA1 SHA512 SSDEEP

        memory/2344-2-0x0000000000220000-0x0000000000221000-memory.dmp

        memory/2344-30-0x0000000000400000-0x0000000000500000-memory.dmp

        memory/2624-2994-0x0000000000400000-0x0000000000500000-memory.dmp

        memory/2624-3981-0x0000000000400000-0x0000000000500000-memory.dmp

        memory/2624-4028-0x0000000000400000-0x0000000000500000-memory.dmp