MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lead users to a link farm disguised as free downloads. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=ctet+answer+key+2020+feb+pdf', which is part of a link farm with over 30 external PDF links. This suggests an attempt to distribute malware or conduct phishing by leveraging SEO tactics.
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.com/pify?keyword=ctet+answer+key+2020+feb+pdf In PDF document text
- http://files.austinfilmworks.com/uploads/1/3/1/8/131856234/xadoxepu-lobiladalew.pdfIn PDF document text
- http://files.mimiscrafts.com/uploads/1/3/1/6/131637279/91e5d.pdfIn PDF document text
- http://files.spiralingupsolutions.com/uploads/1/3/1/4/131453255/sodefeduxulat.pdfIn PDF document text
- http://files.mistertea.ca/uploads/1/3/1/4/131438127/6220920.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/1/0429/7208/6423/files/45759759102.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/97757529074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5176/8225/files/dugogubejupavawewotanokaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8649/5400/files/47261152055.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92399027362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5049/2316/files/26385811712.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5848/6678/files/sanikopowabojaluw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3641/6936/files/53664608976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4486/2114/files/5954012879.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16216600544.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5054/0964/files/45351293440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1813/3405/files/81484355309.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_off0000ac8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC8A | 5328 bytes |
SHA-256: edf66eaba9d1bcf4d31c61e361f7fc28369a87104956678f4dfa7c953f9d3ca6 |
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font_01_sfnt_off0000bebe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEBE | 10732 bytes |
SHA-256: 34cdc726f93a90195cfa5dcda62918b4f0eef6909db96dd5627fb4570509e4ce |
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font_02_sfnt_off0000e361.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE361 | 3776 bytes |
SHA-256: 70b0980efe2b812bc6b33506c45d47fb21971d88a751af04b6d3ea8260c9d53a |
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