MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wb?keyword=foil%20math%20worksheets%20printable', which is also flagged as a malicious redirector. This suggests the document is part of an SEO link farm or phishing campaign designed to drive traffic to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://ttraff.ru/wb?keyword=foil%20math%20worksheets%20printable In PDF document text
- http://files.jpicac.org/uploads/1/3/1/8/131856076/7643686.pdfIn PDF document text
- http://files.plymouthareapolicechoir.com/uploads/1/3/0/7/130775471/vanuvifag-luvibajunoko.pdfIn PDF document text
- http://files.motherhooduncorked.com/uploads/1/3/2/7/132740997/rogoranadajiwusadut.pdfIn PDF document text
- http://files.stawardstation.co.uk/uploads/1/3/0/7/130775565/7007399.pdfIn PDF document text
- http://fizepove.mainauctiongalleries.com/uploads/1/3/2/6/132681464/20ebd71.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0813/1233/files/nichrome_wire_calculator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2442/2811/files/mebexetamilowixofarepa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7410/1149/files/english_story_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4783/7083/files/93069256331.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8301/4048/files/morelunapitepinisipude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4162/7029/files/boziza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9118/9157/files/edublogs_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/53799740207.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2973/3282/files/bazawaruguferidabamax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2439/2087/files/kegizapuxasotak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9432/6949/files/56303820836.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9806/2501/files/18574935517.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006653.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6653 | 5312 bytes |
SHA-256: 58b656ad7b78f5e9587f74452355f31045bdde137b98936bb38748d7665a1271 |
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font_01_sfnt_off00007841.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7841 | 10424 bytes |
SHA-256: aab68bf97cccf22bc5dbe1d676082f121d9544078873734f9cb2499b35729ea4 |
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