Trojan.MulDrop20.55486

Technical Information

To ensure autorun and distribution

Creates or modifies the following files

<SYSTEM32>\tasks\spoolsvs
<SYSTEM32>\tasks\spoolsv
<SYSTEM32>\tasks\lsassl
<SYSTEM32>\tasks\iexplorei
<SYSTEM32>\tasks\lsass
<SYSTEM32>\tasks\iexplore
<SYSTEM32>\tasks\idlei
<SYSTEM32>\tasks\idle
<SYSTEM32>\tasks\mdm
<SYSTEM32>\tasks\mdmm
<SYSTEM32>\tasks\audiodg
<SYSTEM32>\tasks\audiodga

Modifies file system

Creates the following files

C:\blocksvc\p83m7xbeekqivylmfmtld2cif.bat
%TEMP%\5c7ujlkw8a
C:\blocksvc\42af1c969fbb7b
C:\blocksvc\audiodg.exe
<Current directory>\559fba5f8e4410
<Current directory>\mdm.exe
C:\users\public\pictures\6ccacd8608530f
C:\users\public\pictures\idle.exe
C:\recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\6203df4a6bafc7
C:\recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\lsass.exe
C:\totalcmd\language\9db6e019d4f04e
C:\totalcmd\language\iexplore.exe
<Current directory>\f3b6ecef712a24
<Current directory>\spoolsv.exe
C:\blocksvc\comreview.exe
C:\blocksvc\ktjk2l58fziifqz9jgrhygpvnfi.vbe
%TEMP%\2vouys0zfv.bat
nul

Deletes the following files

%TEMP%\5c7ujlkw8a

Network activity

UDP

'localhost':123

Miscellaneous

Searches for the following windows

ClassName: 'EDIT' WindowName: ''

Creates and executes the following

'%WINDIR%\syswow64\wscript.exe' "C:\blocksvc\kTjk2l58fZIifqZ9JGrhYGPVNFi.vbe"
'C:\blocksvc\comreview.exe'
'C:\recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\lsass.exe'
'%WINDIR%\syswow64\cmd.exe' /c ""C:\blocksvc\P83M7xBEekQIVYLMfmtld2cIf.bat" "' (with hidden window)
'<SYSTEM32>\cmd.exe' /C "%TEMP%\2VouYs0zfV.bat"' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c ""C:\blocksvc\P83M7xBEekQIVYLMfmtld2cIf.bat" "
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/blocksvc/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Far2/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/MSOCache/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/totalcmd/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Users/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/vanogq/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:/'
'<SYSTEM32>\cmd.exe' /C "%TEMP%\2VouYs0zfV.bat"
'<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'C:\blocksvc\audiodg.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 9 /tr "'C:\blocksvc\audiodg.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'<Current directory>\spoolsv.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "spoolsv" /sc ONLOGON /tr "'<Current directory>\spoolsv.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'<Current directory>\spoolsv.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "iexplorei" /sc MINUTE /mo 6 /tr "'C:\totalcmd\LANGUAGE\iexplore.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "iexplore" /sc ONLOGON /tr "'C:\totalcmd\LANGUAGE\iexplore.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "iexplorei" /sc MINUTE /mo 10 /tr "'C:\totalcmd\LANGUAGE\iexplore.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "lsassl" /sc MINUTE /mo 9 /tr "'C:\Recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\lsass.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "lsass" /sc ONLOGON /tr "'C:\Recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\lsass.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\lsass.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Users\Public\Pictures\Idle.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\Public\Pictures\Idle.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Users\Public\Pictures\Idle.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "mdmm" /sc MINUTE /mo 10 /tr "'<Current directory>\mdm.exe'" /f
'<SYSTEM32>\schtasks.exe' /create /tn "mdm" /sc ONLOGON /tr "'<Current directory>\mdm.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "mdmm" /sc MINUTE /mo 7 /tr "'<Current directory>\mdm.exe'" /rl HIGHEST /f
'<SYSTEM32>\schtasks.exe' /create /tn "audiodg" /sc ONLOGON /tr "'C:\blocksvc\audiodg.exe'" /rl HIGHEST /f
'<SYSTEM32>\w32tm.exe' /stripchart /computer:localhost /period:5 /dataonly /samples:2