Analysis

  • user interaction
    yes
  • max time kernel
    899s
  • max time network
    523s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 12:31

General

  • Target
    狗谷DN下载器.exe
  • Size 37.6MB
  • Sample261030-pp2emsef43
  • SHA256 58bd3d61e76277345a69de400044a29af6341923586c3673952e5bcdd1198368
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

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

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\狗谷DN下载器.exe
    "C:\Users\Admin\AppData\Local\Temp\狗谷DN下载器.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\aria2c.exe
      "C:\Users\Admin\AppData\Local\Temp\aria2c.exe" --rpc-listen-port=6900 --listen-port=6868-6969 --dht-listen-port=6686-6796 --enable-rpc=true --rpc-allow-origin-all=true --disable-ipv6=false --rpc-secret=123 --enable-dht=true --enable-dht6=true --dht-file-path=C:/Users/Admin/AppData/Local/Temp/dht.dat --dht-file-path6=C:/Users/Admin/AppData/Local/Temp/dht6.dat --bt-external-ip= --dry-run=false
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      PID:4464
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1712
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:4824

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            E2EECore.3.5.241231.dll

            • Path C:\Users\Admin\AppData\Local\Temp\E2EECore.3.5.241231.dll
            • Size 11.1MB
            • SHA256 eaef25459ef08b8ac5bade805702f346599c1e22afb41d47dda3e935e7ade522
            • MD5 SHA1 SHA512 SSDEEP TLSH

            aria2c.exe

            • Path C:\Users\Admin\AppData\Local\Temp\aria2c.exe
            • Size 7.2MB
            • SHA256 5ec01583a706a8e5d5a93022194b9954666de9bb79d13c63cb5a895dd68dedb2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/4464-44-0x00007FF7E36E0000-0x00007FF7E3E22000-memory.dmp

            memory/4464-35-0x00007FF7E36E0000-0x00007FF7E3E22000-memory.dmp

            memory/5004-13-0x00000000077E0000-0x00000000077E1000-memory.dmp

            memory/5004-15-0x00000000057C0000-0x00000000057F6000-memory.dmp

            memory/5004-11-0x00000000077C0000-0x00000000077C1000-memory.dmp

            memory/5004-10-0x0000000005A70000-0x0000000005A71000-memory.dmp

            memory/5004-8-0x00000000057C0000-0x00000000057F6000-memory.dmp

            memory/5004-12-0x00000000078E0000-0x00000000078E1000-memory.dmp

            memory/5004-14-0x0000000007880000-0x0000000007881000-memory.dmp

            memory/5004-9-0x0000000006730000-0x0000000006731000-memory.dmp

            memory/5004-16-0x00000000057C0000-0x00000000057F6000-memory.dmp

            memory/5004-18-0x0000000007900000-0x0000000007901000-memory.dmp

            memory/5004-17-0x00000000078C0000-0x00000000078C1000-memory.dmp

            memory/5004-7-0x0000000005A70000-0x0000000005A71000-memory.dmp

            memory/5004-6-0x0000000005810000-0x0000000005823000-memory.dmp

            memory/5004-5-0x00000000057C0000-0x00000000057F6000-memory.dmp