MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Nilsson electric circuits 10th edition solutions pdf' and a URL that matches the redirector. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broad distribution attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=nilsson+electric+circuits+10th+edition+solutions+pdf.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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/pify?keyword=nilsson+electric+circuits+10th+edition+solutions+pdf In PDF document text
- http://files.appletreecontractors.com/uploads/1/3/1/6/131607712/9709263.pdfIn PDF document text
- http://files.betweentheriversgathering.com/uploads/1/3/0/7/130740517/tonif-zowagodadigogu-sorel-pisogole.pdfIn PDF document text
- http://files.motherstouchhomehealth.com/uploads/1/3/1/6/131607310/zolotuzulukigawuk.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/1/0432/6601/5400/files/vinulilijon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7260/0726/files/zuganurugumonixuzakabox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6009/2309/files/kewiximilenezixinis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7053/5318/files/ellie_goulding_burn_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3653/2136/files/kerekotusologapupulut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9862/8501/files/64245793794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/kugewogute.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5956/9055/files/79948983971.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2358/8773/files/mirujisib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8697/0021/files/pexezivoxar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6856/3351/files/4821240657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9145/2313/files/84928022728.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7586/9599/files/gehl_5640_service_manual.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_off0000b074.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB074 | 5196 bytes |
SHA-256: 8e475f74fbfb9ab9029b8253645fbe0d6c0212f6c30adb83ba927acb0a3406fc |
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font_01_sfnt_off0000c225.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC225 | 14276 bytes |
SHA-256: f2718d789f696e591bfed2bc232f939fd00b8b1381b00d52fef9c27fc74d77c4 |
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