Malicious PDF — malware analysis report

Static analysis result for SHA-256 72fa222295760bd2…

MALICIOUS

PDF

90.7 KB Created: 2021-07-16 21:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 35a74368ef4c469805d779de5d6386ac SHA-1: d40c866f633a1a2390ddbcba01efdf012bd3415d SHA-256: 72fa222295760bd24fabf78ef21bdd834de0217dd7a115f7d4c76aac2dc40964
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as a phishing trojan. It contains an embedded URI that points to a URL, which is likely intended to redirect the user to a malicious site. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://feedproxy.google.com/~r/sq/ugae/~3/HbdJGeoIq_s/square?utm_term=can+i+have+honey+while+intermittent+fasting
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0ead71d6532080098bed8/1626401495626/21395501046.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ed1a9164a4563c8f79f1ca/1626151569703/wabadekat.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ecfd56c2ef2d11c8d0fcee/1626144087188/how_to_cheat_mobile_legends_bang_bang.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee3ca57dee9f188f788a26/1626225829450/zikiguwag.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001012c.bin
8190ee03f089f41dddc8d4532b8eded64ca91f26e031aae185e81f7d3812b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1012C 17052 bytes
font_01_sfnt_off00012d53.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D53 16792 bytes
font_02_sfnt_off0001456a.bin
415505f0989dea7a9489dd2a38ef5ddf44bca1916717909111744e722474d7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1456A 10956 bytes

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