Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 5dd4718baa1b8e2b…

MALICIOUS

Office (OOXML)

82.4 KB Created: 2017-05-25 19:12:00 UTC Authoring application: Microsoft Macintosh Word 14.0000 First seen: 2026-06-04
MD5: b2e0deb640c322328cf62982f6172480 SHA-1: 2d79030a52b4250e6ea6208de06d87d8ebf4df01 SHA-256: 5dd4718baa1b8e2b80947e593bd0c1abe8ed05b3997486c1887239bc6a5f434b
62 Risk Score

Malware Insights

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

The OOXML document contains VBA macros, indicated by the 'OOXML_VBA' heuristic. The 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic specifically flags an AutoOpen macro, which is designed to execute automatically when the document is opened. The document body prompts the user to enable macros, suggesting a social engineering attempt to bypass security measures. No malicious URLs or scripts were extracted, but the presence of an auto-executing macro is a strong indicator of malicious intent.

Heuristics 3

  • VBA project inside OOXML medium 1 related finding OOXML_VBA
    Document contains a VBA project — VBA macros present
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Triggers on the COMBINATION of two tokens co-occurring in the same compiled VBA/cache stream: an auto-execution entry point (Auto_Open / AutoOpen / Document_Open / Workbook_Open / Auto_Close / AutoClose) AND a shell/download/object-execution token (Shell, CreateObject, GetObject, PowerShell, cmd.exe, URLDownloadToFile, WinHttp, XMLHTTP, ADODB.Stream, ShellExecute, ExecuteExcel4Macro). Neither token alone fires it — it is the pairing that flags p-code-only or source-extraction-failure macro documents where the visible VBA source is unavailable. The matched tokens are named in the detail line below.
  • 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.motobit.com In document text (OOXML body / shared strings)
    • http://Motobit.czIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/mac/office/2008/mainIn 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/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)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 102 bytes
SHA-256: 64853ce8d982b097020102e9e65f26fe7741a7e06e77df1fc07258acd0514607
Preview script
First 1,000 lines of the extracted script
Sub hello()
    MsgBox "Hello World !"
  End Sub
  Sub hello()
    MsgBox "Hello World !"
  End Sub
vbaProject_00.bin vba-project OOXML VBA project: word/vbaProject.bin 14336 bytes
SHA-256: 6e9f0133ff8357db4a704cad12c59632a762e3886ffb9e19badc0a272fe5d0d4

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