MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a malicious URL, disguised as a free download. The PDF also hosts a large number of links to other PDFs, likely for SEO manipulation to increase visibility. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate a malicious intent to redirect users to harmful content.
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/pify?keyword=tamil+songs+keyboard+notes+pdf+free+download In PDF document text
- http://muvinibul.marionramirez.com/uploads/1/3/1/6/131606577/xodukot.pdfIn PDF document text
- http://files.deborahmilesdesign.co.uk/uploads/1/3/0/8/130814390/fawuboja.pdfIn PDF document text
- http://wusijawu.splashcitysoaps.com/uploads/1/3/0/7/130738720/reraraz.pdfIn PDF document text
- http://files.truahealth.com/uploads/1/3/2/7/132710661/mufigajixaraf-gutorimidusami.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3646/7612/files/pujunizezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2677/6227/files/74939463746.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7990/9028/files/gunipenedabo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0591/9903/files/41084076816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7961/5142/files/readme_driven_development.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3251/8549/files/besoxomikibelofinufetopub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0067/6003/files/fazoxuxogowanuwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3867/6894/files/zerul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4339/5483/files/tizuvuvoxasilu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/74008925008.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9482/6396/files/marriage_certificate_online_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/sazomiforubabe.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000afe5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFE5 | 5708 bytes |
SHA-256: c1d82ea18e47f1cef353a1b5d320edd950a37504341b812b4b7a8c9ea47ce89d |
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font_01_sfnt_off0000c349.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC349 | 2724 bytes |
SHA-256: ae5085fc9fdbc6c7b2d3ea006af6d38b0fd9359915d3809e7d561936ffaee9ff |
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font_02_sfnt_off0000ceca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCECA | 10880 bytes |
SHA-256: 2e3a71a50a1645b7368e543315e8255e6f4d8e4450cae5dd9880c939fae1ea8c |
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