Once executed, the malware creates a copy of itself with the following name in the Windows directory:
It creates the following batch file in the current working directory that will be used to delete the original file executed by user:
The malware then installs a kernel-mode driver in the Windows directory in order to hide its activities:
The .SYS file is detected as Rootkit.Win32.Agent.SZ.
It deletes the following file:
Papras.DC creates the following process:
The following process and files are hidden by the installed rootkit driver:
• %windir%\9129837.exe
• %windir%\new_drv.sys
The malware creates the following registry key:
• HKCU\Software\Microsoft\InetData
The following values are modified:
• [HKCU\Software\Microsoft\InetData]
k1 = 3868AB03
• [HKCU\Software\Microsoft\InetData]
k2 = 438E0B5C
• [HKCU\Software\Microsoft\InetData]
version = 220
• [HKLM\System\CurrentControlSet\Services\SharedAccess]
Start = 00000004
• [HKLM\System\CurrentControlSet\Services\wscsvc]
Start = 00000004
• [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
ttool = C:\WINDOWS\9129837.exe
The following functions are hooked in order to steal user information:
• kernel32.dll!CreateProcessA
• kernel32.dll!CreateProcessA
• kernel32.dll!CreateProcessA
• kernel32.dll!CreateProcessW
• kernel32.dll!CreateProcessW
• kernel32.dll!CreateProcessW
• ntoskrnl.exe!NtEnumerateValueKey
• ntoskrnl.exe!NtQueryDirectoryFile
• ntoskrnl.exe!NtQuerySystemInformation
• wininet.dll!HttpSendRequestA
• wininet.dll!HttpSendRequestA
• wininet.dll!HttpSendRequestA
• wininet.dll!HttpSendRequestW
• wininet.dll!HttpSendRequestW
• wininet.dll!InternetCloseHandle
• wininet.dll!InternetCloseHandle
• wininet.dll!InternetCloseHandle
• wininet.dll!InternetQueryDataAvailable
• wininet.dll!InternetQueryDataAvailable
• wininet.dll!InternetQueryDataAvailable
• wininet.dll!InternetReadFile
• wininet.dll!InternetReadFile
• wininet.dll!InternetReadFile
• wininet.dll!InternetReadFileExA
• wininet.dll!InternetReadFileExA
• wininet.dll!InternetReadFileExA
The malware sniffs for the following information:
• ICQ, IMAP, FTP, and POP3 logon credentials
• Information passed through webforms
Papras.DC attempts to establish a connection to the following domain through HTTP in order to pass the stolen information:
• http://pull.dolcebrava.com