Malicious Office (OOXML) — malware analysis report

Heuristics 8

• ClamAV: Doc.Downloader.BazarBlue09212-9898946-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Doc.Downloader.BazarBlue09212-9898946-0
• VBA project inside OOXML medium 5 related findings OOXML_VBA
  Document contains a VBA project — VBA macros present
• WScript.Shell usage critical OLE_VBA_WSCRIPT
  WScript.Shell usage
  Matched line in script

  Sub memNext()
  CreateObject("wscript.shell").RegWrite dataTmp, 1, "REG_DWORD"
  End Sub

• CreateObject call high OLE_VBA_CREATEOBJ
  CreateObject call
  Matched line in script

  Sub memNext()
  CreateObject("wscript.shell").RegWrite dataTmp, 1, "REG_DWORD"
  End Sub

• GetObject call high OLE_VBA_GETOBJ
  GetObject call
  Matched line in script

  Sub vbListboxText(localCaption)
  Set constTable = GetObject("", "word.application")
  With constTable.Documents.Add.VBProject.VBComponents("ThisDocument").CodeModule

• VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
  Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
• AutoOpen macro low OLE_VBA_AUTOOPEN
  AutoOpen macro
  Matched line in script

  Attribute VB_Name = "swapConst"
  Sub autoopen()
  memNext

• 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)

  • http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
  • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
  • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
  • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
  • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
  • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2012/wordmlIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2015/wordml/symexIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
  • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In document text (OOXML body / shared strings)
  • http://ns.adobe.com/xap/1.0/In document text (OOXML body / shared strings)
  • http://purl.org/dc/elements/1.1/In document text (OOXML body / shared strings)
  • http://ns.adobe.com/photoshop/1.0/In document text (OOXML body / shared strings)
  • http://ns.adobe.com/xap/1.0/mm/In document text (OOXML body / shared strings)
  • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#In document text (OOXML body / shared strings)
  • http://ns.adobe.com/xap/1.0/sType/ResourceRef#In document text (OOXML body / shared strings)
  • http://ns.adobe.com/tiff/1.0/In document text (OOXML body / shared strings)
  • http://ns.adobe.com/exif/1.0/In document text (OOXML body / shared strings)

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