Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 a9e13e59bbd9f4d3…

MALICIOUS

Office (OOXML)

64.7 KB Created: 2018-10-22 04:24:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2020-09-07
MD5: cd69176cf90f6156c5f36e1ef81b4dad SHA-1: 8568550875a7ad21d0a3b002fd21bfbfd9ed411e SHA-256: a9e13e59bbd9f4d3a494c88388f5e206ea507e55062fe09fff17e9a1b21be012
142 Risk Score

Malware Insights

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

The sample exploits CVE-2023-36884 by referencing a remote template located at https://sparc.org.in/wp-content/uploads/2020/06/now/rt.rtf. This technique is commonly used to download and execute a second-stage payload. The document body itself contains a lure related to a 'PARICHAY Account' verification form, suggesting a phishing or social engineering pretext.

Heuristics 4

  • CVE-2023-36884 — external RTF auto-load relationship critical CVE likely CVE_2023_36884
    Document auto-load relationship references a remote RTF file (https://sparc.org.in/wp-content/uploads/2020/06/now/rt.rtf), matching the stronger Storm-0978/RomCom external-RTF delivery shape. Plain clickable hyperlinks are not enough for this CVE rule.
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://sparc.org.in/wp-content/uploads/2020/06/now/rt.rtf) — 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.
  • External relationship high OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: https://sparc.org.in/wp-content/uploads/2020/06/now/rt.rtf
  • 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://sparc.org.in/wp-content/uploads/2020/06/now/rt.rtf Remote template reference
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn 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/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/officedocument/2006/relationships/attachedtemplateIn document text (OOXML body / shared strings)

Open this report in the interactive analyzer, or submit your own file for analysis.