Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 aecb4465c1282f38…

MALICIOUS

Office (OOXML)

245.6 KB Created: 2021-10-26 11:08:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-11-02
MD5: c4ec691233fc55389e3eb7c745185880 SHA-1: dc4d02ae8718ca9cd09e27c1afbd0a175b2e3153 SHA-256: aecb4465c1282f387102dfbf024606acfb06ebc1dbf6a9bd041bdf9393a4197b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document contains heuristics indicating it uses a remote image beacon and a remote template injection, both pointing to the domain 'felionaris.com'. It also employs a lure to encourage users to enable content, a common tactic for macro-enabled malware. The presence of these indicators suggests the document is designed to download and execute a malicious payload.

Heuristics 5

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://felionaris.com/xs/R5rA9rjexfCYHdYY7xXeBqYw8SZSiLUUcQ~~/RwdtxtWc5477_r3OkNI6MGkyvLULiMQRjg~~/?prx) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • Remote image (web beacon / tracking pixel) medium OOXML_IMAGE_BEACON
    Document references an external image URL — loads automatically on open, revealing IP address and timestamp to the server (used for phishing tracking and NTLM hash theft on corporate networks)
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/document.xml.rels: http://felionaris.com/xs/TIz8Dyj1idjZAMDPHY0Mef1nNw6xBN6r8A~~/VYJlMurcFc5FsAO2h6cG1nG-ageyDWzibA~~/
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://felionaris.com/xs/TIz8Dyj1idjZAMDPHY0Mef1nNw6xBN6r8A~~/VYJlMurcFc5FsAO2h6cG1nG-ageyDWzibA~~/ OOXML external relationship
    • http://felionaris.com/xs/R5rA9rjexfCYHdYY7xXeBqYw8SZSiLUUcQ~~/RwdtxtWc5477_r3OkNI6MGkyvLULiMQRjg~~/?prxOOXML external relationship
    • 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.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)

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