MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure related to academic materials, likely to trick users into visiting the malicious site. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a larger link farm, likely for SEO poisoning or distributing malicious links.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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.com/pify?keyword=princeton+review+sat+chemistry+practice+test+pdf In PDF document text
- http://files.3rdpartyslabs.com/uploads/1/3/0/7/130739773/a7c65b8.pdfIn PDF document text
- http://files.sarasotacountysurplusproperties.com/uploads/1/3/0/7/130739263/pisesawaxupi_furaziguve.pdfIn PDF document text
- http://files.thehockeydennl.com/uploads/1/3/1/4/131407552/waveg.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/1/0433/0687/7080/files/zadolodiwifunum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4392/1820/files/85115341319.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0009/3083/files/sogikogusojijinavovefogut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6276/9302/files/xojakerufotom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/negopolikutowuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/zamorovumifewuwotov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4729/6924/files/poxewozifuweterodewele.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8688/9625/files/siriwajobem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0067/7031/files/47774751741.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nudukesobiji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/55185334320.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8131/1132/files/fibirir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5668/5468/files/kexurepobavunujaru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4135/6950/files/dutonew.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_off00006d41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D41 | 5620 bytes |
SHA-256: ee03989d95270411727c67300e9fbce936796ad52483db73730d9698955c4d32 |
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font_01_sfnt_off0000804c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x804C | 11008 bytes |
SHA-256: a99ed3038943c6455d202fafbfef046d2b785d2b9e4c9d9b4126c49fc85ec558 |
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