Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'taskhost' = '"%ProgramFiles(x86)%\Microsoft Office\taskhost.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'taskhost' = '"%ProgramFiles(x86)%\Microsoft Office\taskhost.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ProgramFiles(x86)%\Microsoft Office\taskhost.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'lsass' = '"<Current directory>\lsass.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'lsass' = '"<Current directory>\lsass.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ProgramFiles(x86)%\Microsoft Office\taskhost.exe", "<Current directory>\lsass.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'smss' = '"%ProgramFiles(x86)%\Windows Media Player\smss.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'smss' = '"%ProgramFiles(x86)%\Windows Media Player\smss.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ProgramFiles(x86)%\Microsoft Office\taskhost.exe", "<Current directory>\lsass.exe", "%ProgramFiles(x86)%\...
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'explorer' = '"%ProgramFiles%\Windows Portable Devices\explorer.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'explorer' = '"%ProgramFiles%\Windows Portable Devices\explorer.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
Creates or modifies the following files
- <SYSTEM32>\tasks\taskhostt
- <SYSTEM32>\tasks\taskhost
- <SYSTEM32>\tasks\lsassl
- <SYSTEM32>\tasks\lsass
- <SYSTEM32>\tasks\smss
- <SYSTEM32>\tasks\smsss
- <SYSTEM32>\tasks\explorer
- <SYSTEM32>\tasks\explorere
- <SYSTEM32>\tasks\firefoxf
- <SYSTEM32>\tasks\firefox
- <SYSTEM32>\tasks\<File name>z
- <SYSTEM32>\tasks\<File name>
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '%ProgramFiles(x86)%\Microsoft Office\taskhost.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '<Current directory>\lsass.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '%ProgramFiles(x86)%\Windows Media Player\smss.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '%ProgramFiles%\Windows Portable Devices\explorer.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '<Full path to file>'
Modifies file system
Creates the following files
- <Current directory>\0db33a85b9f9d3
- %HOMEPATH%\desktop\bgnafbxf.log
- %HOMEPATH%\desktop\ieqggvtm.log
- %HOMEPATH%\desktop\abhrxcdf.log
- %HOMEPATH%\desktop\rxzbnjnx.log
- %HOMEPATH%\desktop\juqmdpyq.log
- %HOMEPATH%\desktop\aqiwtwij.log
- %TEMP%\suwhhmmpat
- <Current directory>\6203df4a6bafc7
- %TEMP%\mrepg6tk9m.bat
- %HOMEPATH%\desktop\mbonsicv.log
- %HOMEPATH%\desktop\lwidkkiu.log
- %HOMEPATH%\desktop\upryrxdg.log
- %HOMEPATH%\desktop\tkgyronf.log
- %HOMEPATH%\desktop\sfvxrfyf.log
- nul
- %TEMP%\9rgkjeljr4.bat
- %TEMP%\uxmll9avum
- %TEMP%\3qvt43lj.out
- %TEMP%\3qvt43lj.cmdline
- %TEMP%\3qvt43lj.0.cs
- %TEMP%\3a401533b82e2cb9c9bc589aa6ee01300983b035
- %ProgramFiles(x86)%\microsoft office\b75386f1303e64
- %ProgramFiles(x86)%\microsoft office\taskhost.exe
- %HOMEPATH%\desktop\ygmvtedi.log
- <Current directory>\lsass.exe
- %ProgramFiles(x86)%\windows media player\69ddcba757bf72
- %ProgramFiles(x86)%\windows media player\smss.exe
- %ProgramFiles%\windows portable devices\7a0fd90576e088
- %ProgramFiles%\windows portable devices\explorer.exe
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\0fc223bdacedc3
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe
- %HOMEPATH%\desktop\jbnihliy.log
- %HOMEPATH%\desktop\cdptxbir.log
Deletes the following files
- %TEMP%\3qvt43lj.cmdline
- %TEMP%\3qvt43lj.0.cs
- %TEMP%\3qvt43lj.out
- %TEMP%\uxmll9avum
- %TEMP%\suwhhmmpat
Moves the following files
- from %ProgramFiles%\microsoft office\office14\bcssync.exe to %ProgramFiles%\microsoft office\office14\bcssync.exe.exe
Network activity
Connects to
- '70#####m.newnyash.top':80
UDP
- DNS ASK 70#####m.newnyash.top
- 'localhost':123
Miscellaneous
Creates and executes the following
- '%ProgramFiles%\windows portable devices\explorer.exe'
Executes the following
- '<SYSTEM32>\schtasks.exe' /create /tn "taskhostt" /sc MINUTE /mo 8 /tr "'%ProgramFiles(x86)%\Microsoft Office\taskhost.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "explorere" /sc MINUTE /mo 6 /tr "'%ProgramFiles%\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
- '<SYSTEM32>\w32tm.exe' /stripchart /computer:localhost /period:5 /dataonly /samples:2
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\mrepg6Tk9m.bat"
- '<SYSTEM32>\ping.exe' -n 10 localhost
- '<SYSTEM32>\chcp.com' 65001
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\9RgkJELJr4.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>z" /sc MINUTE /mo 12 /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>" /sc ONLOGON /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>z" /sc MINUTE /mo 11 /tr "'<Full path to file>'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 13 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\HaE3Dx3E3n.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "firefox" /sc ONLOGON /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 7 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "smsss" /sc MINUTE /mo 13 /tr "'%ProgramFiles(x86)%\Windows Media Player\smss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "smss" /sc ONLOGON /tr "'%ProgramFiles(x86)%\Windows Media Player\smss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "smsss" /sc MINUTE /mo 14 /tr "'%ProgramFiles(x86)%\Windows Media Player\smss.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "lsassl" /sc MINUTE /mo 13 /tr "'<Current directory>\lsass.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "lsass" /sc ONLOGON /tr "'<Current directory>\lsass.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'<Current directory>\lsass.exe'" /f
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\3qvt43lj.cmdline"
- '<SYSTEM32>\schtasks.exe' /create /tn "taskhostt" /sc MINUTE /mo 14 /tr "'%ProgramFiles(x86)%\Microsoft Office\taskhost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "taskhost" /sc ONLOGON /tr "'%ProgramFiles(x86)%\Microsoft Office\taskhost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "explorer" /sc ONLOGON /tr "'%ProgramFiles%\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "explorere" /sc MINUTE /mo 6 /tr "'%ProgramFiles%\Windows Portable Devices\explorer.exe'" /f
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\3qvt43lj.cmdline"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\mrepg6Tk9m.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\9RgkJELJr4.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\HaE3Dx3E3n.bat"' (with hidden window)
