Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 919ecf9c0ea4c8ba…

MALICIOUS

Office (OOXML)

53.0 KB Created: 2017-10-27 22:23:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-09-22
MD5: a389d35f58a1f648bf2c0ae0462c0ec6 SHA-1: 3a339f85c32d0d481b951719a8455e659e53b4e5 SHA-256: 919ecf9c0ea4c8bafa37e620e6df8cbcede73badc8698e4004938c8ce87dd577
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This Office document was flagged as malicious. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Heuristics 4

  • Field QUOTE with ASCII-integer command payload critical OOXML_FIELD_QUOTE_ASCII_PAYLOAD
    QUOTE field in word/document.xml carries a decimal-ASCII byte sequence that decodes to a shell command referencing cmd
  • Word field-chain (SET/REF) co-located with DDE high OOXML_FIELD_SET_REF_CHAINING
    3 SET/REF variable pair(s) co-occur with DDE field(s) in word/document.xml
  • DDE field low OOXML_DDE
    DDE (Dynamic Data Exchange) field found in word/document.xml. The command does not reference a known-dangerous executable, but DDE can be abused for code execution.
  • 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 https://w3-b.herokuapp.com In 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/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.microsoft.com/office/drawing/2015/10/21/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartexIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/inkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2017/model3dIn 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/2016/wordml/cidIn 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://schemas.openxmlformats.org/package/2006/content-typesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-propertiesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-propertiesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocumentIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/webSettingsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/settingsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/stylesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/themeIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/fontTableIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/thememl/2012/mainIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/schemaLibrary/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/wordIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/extended-propertiesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/metadata/core-propertiesIn document text (OOXML body / shared strings)
    • http://purl.org/dc/elements/1.1/In document text (OOXML body / shared strings)
    • http://purl.org/dc/terms/In document text (OOXML body / shared strings)
    • http://purl.org/dc/dcmitype/In document text (OOXML body / shared strings)
    • http://www.w3.org/2001/XMLSchema-instanceIn document text (OOXML body / shared strings)

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