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

Static analysis result for SHA-256 cbd6f89dae3b013f…

MALICIOUS

Office (OOXML) / .DOC

54.7 KB Created: 2022-04-05 01:10:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2022-04-05
MD5: 0ef32b48f6ca3a1a22ab87058b3d8aa0 SHA-1: 34a72824cfd5c99264475d5f35b5bc3f7ad69a85 SHA-256: cbd6f89dae3b013f598664bb004eeea0a45c8bf31ae2197adab1b8907b65dc12
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The OOXML document contains VBA macros, indicated by the 'OOXML_VBA' and 'EXTRACTED_FILE_STATIC_TRIAGE' heuristics. The 'OLE_VBA_CREATEOBJ' heuristic suggests the macro attempts to create objects for execution. The VBA script itself, though truncated, shows API calls to load libraries and execute functions, consistent with a downloader or initial execution stage. No specific malicious URLs or hashes were directly extracted, but the presence of the VBA project file is a key indicator.

Heuristics 4

  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • 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
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2018/wordml/cex
    • http://schemas.microsoft.com/office/word/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2018/wordml
    • http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
ba860fd774399dbe02d6c33f32778af11b3f0d75bdcd0b06332d6f75f0074250		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 35030 bytes
vbaProject_00.bin
27c0f6047fad15844c59a977353ace9cd834f811c3e079fcad2b1f201a521c80		 vba-project OOXML VBA project: word/vbaProject.bin 78336 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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