MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a download for an 'icse chemistry book for class 11 pdf'. This link points to 'ttraff.cc', a known malicious redirector. The document also features a large number of external PDF links, many hosted on WordPress, likely part of a link farm to improve search engine ranking for malicious lures. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=icse+chemistry+book+for+class+11+pdf In PDF document text
- http://files.sfxfaithformation.org/uploads/1/3/2/7/132740533/vijuzazevudutepe.pdfIn PDF document text
- http://files.oslomamma.net/uploads/1/3/1/8/131856112/velomuj-gugodaluzomep.pdfIn PDF document text
- http://files.biocharireland.com/uploads/1/3/1/8/131856624/a8cb991ddb94.pdfIn PDF document text
- http://files.whitelandchoirs.com/uploads/1/3/1/4/131406855/dorawarodava.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://rizuxagojagu.files.wordpress.com/2020/06/39542360745.pdfIn PDF document text
- https://dajajotunur.files.wordpress.com/2020/07/zogerufonidexafaxi.pdfIn PDF document text
- https://putigip.files.wordpress.com/2020/07/6686737981.pdfIn PDF document text
- https://kifageve.files.wordpress.com/2020/07/55879447022.pdfIn PDF document text
- https://lexokafoje.files.wordpress.com/2020/06/xozebisafarafinukire.pdfIn PDF document text
- https://xudawipopa.files.wordpress.com/2020/06/rujodusapokijumujigozixew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2425/2055/files/40929351901.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3844/8548/files/zuzemorixusifopoxuzubi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7812/2649/files/podus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9032/2342/files/48818492621.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3010/1668/files/lugumilirevisivovedan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2492/4319/files/rofaforesi.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_off00005bc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BC3 | 5372 bytes |
SHA-256: 256fbede5f6f7a7eb2216d2fabf28ea8974f0103621f376b5170680af40317e0 |
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font_01_sfnt_off00006dfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DFC | 9932 bytes |
SHA-256: a7d35e578c85b2e3f237092cf723df6e33479d92d2332dddf9df8ce19830d9f2 |
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