MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links, suggesting a link farm for SEO manipulation. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading content. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL used to lure users.
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.club/wix?keyword=donkey+kong+64+wii+download In PDF document text
- http://segar.k2physiotherapy.ca/uploads/1/3/0/7/130776783/jaxosos-giwasaleg.pdfIn PDF document text
- http://sedixol.lifequestkids.com/uploads/1/3/0/8/130873987/3823685.pdfIn PDF document text
- http://files.wesvaldez.com/uploads/1/3/1/3/131383575/8f8bbbf51aa.pdfIn PDF document text
- http://files.dancewellny.com/uploads/1/3/2/7/132740594/gopofob.pdfIn PDF document text
- http://files.georgiasfossils.com/uploads/1/3/1/4/131406780/wupafadilumumofa.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/1/0431/7030/0065/files/vosefub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8180/8549/files/61280555286.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5752/8480/files/86516038143.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7679/7081/files/bifeniw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0830/1989/files/tetonuloxiropibotaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1849/2824/files/99162624795.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5180/9959/files/thunderbird_vs_evolution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5952/8355/files/blue_collar_crime.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6838/1591/files/que_es_un_enlace_quimico.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB26 | 5216 bytes |
SHA-256: d44d0bcc79a05e39ec4f67683222e0976b39031b3a8970e78b98c3c225a01470 |
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font_01_sfnt_off0000ed28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED28 | 14160 bytes |
SHA-256: 260b283c1072b59a415bb92cc1a4d48b162f1b0977bf0264da6a87e9c47d933a |
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font_02_sfnt_off000119ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119BA | 17360 bytes |
SHA-256: b07c92ab5e991eb39635c0faeb008e5da9ce6f21bdc1768af4b92b07bb5265a5 |
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