MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass link farm, with a critical heuristic firing for a malicious redirector. The embedded URL https://ttraff.cc/pify?keyword=vis+a+vis+5th+edition+workbook+pdf is a known malicious redirector. The document body, though heavily obfuscated, contains references to the lure 'vis a vis 5th edition workbook pdf' and the redirector URL, indicating a social engineering attempt to trick users into clicking the malicious link.
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=vis+a+vis+5th+edition+workbook+pdf In PDF document text
- http://files.vinublog.com/uploads/1/3/0/7/130740323/ad4273654227740.pdfIn PDF document text
- http://files.tomorrowphotos80.com/uploads/1/3/1/3/131379321/guxogefuwizujiguwik.pdfIn PDF document text
- http://files.monaro.com.au/uploads/1/3/1/4/131437813/be131dac66327.pdfIn PDF document text
- http://wurer.thermosenselab.com/uploads/1/3/2/6/132682051/24a2c24.pdfIn PDF document text
- http://files.phfabrication.net/uploads/1/3/0/7/130740589/kuzefafabiz-difojumukad.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/1/0434/0937/5383/files/soduk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5542/3383/files/wikatajije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1344/6564/files/ralelimajeganex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6576/1176/files/sirekeju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4276/5976/files/37462154996.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7103/6835/files/35862256872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2206/5557/files/13591305876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8488/1825/files/kulejixevixame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4977/1427/files/xosoger.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1206/3391/files/suwoli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2045/1997/files/96192411099.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6244/2646/files/54061409425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/dovikalewupizosatanidor.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_off00006852.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6852 | 5544 bytes |
SHA-256: 1abdd78c85a9c02bdcf004923f2be5a4c690dd9c2a6f61531e30e04218b330ce |
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font_01_sfnt_off00007b42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B42 | 10252 bytes |
SHA-256: fa41a588076d8a5a9fb2f704eb39c8368b4cb46a878549291316877bd0f5bd72 |
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