Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 e357611260dec5ff…

MALICIOUS

Office (OOXML)

66.8 KB Created: 2020-12-29 13:56:00 UTC Authoring application: WPS Office_11.1.0.10700_F1E327BC-269C-435d-A152-05C5408002CA First seen: 2021-09-23
MD5: 161e6419a91aa337967086ac573d0963 SHA-1: 278a44fdf138adc9350bb4c8f8476704fa503c63 SHA-256: e357611260dec5ff36f09a2724db6a61a917534798ebc66ab4dfe457a4e45117
142 Risk Score

Malware Insights

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

This Office document was flagged as malicious by ClamAV. 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

  • External OLEObject gadget — CVE-2021-40444 critical CVE exact CVE_2021_40444
    External relationship to MHTML:HTTP:\\192.168.111.129\test.txt!HTTP:\\192.168.111.129\test.txt — exploitable external OLEObject gadget pattern for CVE-2021-40444
  • ClamAV: Doc.Exploit.CVE-2021-40444-9891698-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Exploit.CVE-2021-40444-9891698-2
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/document.xml.rels: MHTML:HTTP:\\192.168.111.129\test.txt!HTTP:\\192.168.111.129\test.txt
  • 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 OOXML external relationship
    • http://schemas.openxmlformats.org/markup-compatibility/2006OOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/mathOOXML external relationship
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingOOXML external relationship
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingOOXML external relationship
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainOOXML external relationship
    • http://schemas.microsoft.com/office/word/2010/wordmlOOXML external relationship
    • http://schemas.microsoft.com/office/word/2012/wordmlOOXML external relationship
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupOOXML external relationship
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkOOXML external relationship
    • http://schemas.microsoft.com/office/word/2006/wordmlOOXML external relationship
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeOOXML external relationship
    • http://www.wps.cn/officeDocument/2013/wpsCustomDataOOXML external relationship
    • http://schemas.openxmlformats.org/package/2006/content-typesOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/customXmlOOXML external relationship
    • http://schemas.openxmlformats.org/package/2006/relationshipsOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/customXmlPropsOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/extended-propertiesOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypesOOXML external relationship
    • http://schemas.openxmlformats.org/package/2006/metadata/core-propertiesOOXML external relationship
    • http://purl.org/dc/elements/1.1/OOXML external relationship
    • http://purl.org/dc/terms/OOXML external relationship
    • http://purl.org/dc/dcmitype/OOXML external relationship
    • http://www.w3.org/2001/XMLSchema-instanceOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/custom-propertiesOOXML external relationship
    • http://schemas.openxmlformats.org/drawingml/2006/mainOOXML external relationship
    • http://schemas.openxmlformats.org/drawingml/2006/pictureOOXML external relationship
    • http://schemas.openxmlformats.org/schemaLibrary/2006/mainOOXML external relationship
    • http://schemas.microsoft.com/office/wordOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/themeOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/webSettingsOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/fontTableOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/settingsOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/stylesOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/oleObjectOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/imageOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocumentOOXML external relationship
    • http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-propertiesOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-propertiesOOXML external relationship
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-propertiesOOXML external relationship

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