MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic indicates a malicious redirector link, specifically 'https://ttraff.ru/pify?keyword=ignou.+ac.+in+b.+ed+entrance+form', which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains text related to an 'entrance form' and the URL itself, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links also points to a link farm, often used to manipulate search engine rankings or distribute malware.
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.ru/pify?keyword=ignou.+ac.+in+b.+ed+entrance+form In PDF document text
- http://files.eng.trans-it.org/uploads/1/3/0/7/130739826/novogifavarig.pdfIn PDF document text
- http://gurera.ricofarmbureau.org/uploads/1/3/1/6/131607712/bc2794876f3e.pdfIn PDF document text
- http://files.fredtheafghan.com/uploads/1/3/0/7/130775735/8040291.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/1/0461/4966/4931/files/fidelity_investments_401k_terms_of_withdrawal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2394/8183/files/fuwobumevonadulokepa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/16988574414.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/32923267679.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5026/1911/files/vertex_form_converter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7816/files/2810010329.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8566/9279/files/vezonevusozobimofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7834/4085/files/luxunezufemebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6980/8550/files/maxejusuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6001/8852/files/dangling_and_misplaced_modifiers_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2338/2166/files/ridusomiwuvumobiti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5670/9288/files/mizanuzotelukelixugik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2890/5127/files/41750746991.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0885/2117/files/7782627487.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6998/7221/files/buxedumoxerexodez.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_off000077a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77A6 | 5240 bytes |
SHA-256: 233e4ca254567c23fda24a63a1dab3d2d68aa5738605a46a91c2246572187754 |
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font_01_sfnt_off00008964.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8964 | 10484 bytes |
SHA-256: c2f8d40183285c6e10449f3909eda4958e4882025ac06148812ef849b472ef88 |
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