MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, a common tactic for phishing or redirecting users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of generated links, and 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically points to a redirector URL used for free-download phishing. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://vilenefex.ru/strik?utm_term=what+are+the+names+of+the+12+disciples+of+god PDF link annotation
- https://cdn.sqhk.co/gadukupuwe/oG2gimG/dizopire.pdfIn PDF document text
- https://cdn.sqhk.co/miranilu/PjjaPmb/era_sosial_5._0.pdfIn PDF document text
- https://cdn.sqhk.co/xuzuvazol/GzcfhhB/nfl_football_scores_week_12_2019.pdfIn PDF document text
- https://cdn.sqhk.co/puvegipuros/Gujhj3X/wubodoranaguvodabepenu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wizomoravazub/fiviwikitiw.pdfIn PDF document text
- https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_a280c8c488e042c5ab5a3c7395e5cb18.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gozifep/wixililu.pdfIn PDF document text
- https://c18d7360-3707-4bf1-9d6f-52ba7510fa17.filesusr.com/ugd/76cb06_5f382163abd94c36b23179c2789c1155.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fosawef/rise_of_kingdoms_lost_crusade_apkpure.pdfIn PDF document text
- https://48e4e0df-78ce-4736-8797-27735e68dc67.filesusr.com/ugd/f3b179_cbe1a025bf644c8d9c78345c84b2f29a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/votubukaxogilix/5836128651.pdfIn PDF document text
- https://s3.amazonaws.com/babuxufarizuxur/mavonagirizuzobix.pdfIn PDF document text
- https://234d5d8d-19c9-4cab-a884-dd0775662658.filesusr.com/ugd/fb7225_efc0fd52b5694bb68849208b497ce1ea.pdf?index=trueIn PDF document text
- https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_38ac4fdb56244ff49d65b7963d35a668.pdf?index=trueIn PDF document text
- https://4eb83289-b313-4542-b68c-79a1d4783db4.filesusr.com/ugd/f6336d_020c738a5ea843009c3d79ce3482bcda.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/baxunaf/cozy_grate_fireplace_heater_manual.pdfIn PDF document text
- https://s3.amazonaws.com/risisipajole/85888152992.pdfIn PDF document text
- https://s3.amazonaws.com/lixisariwulo/zuredulilusukokibaju.pdfIn PDF document text
- https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_8d633d675a99415395260a69bffa8876.pdf?index=trueIn PDF document text
- https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_cafc0634ae7a4e18a64a2aa1c1462647.pdf?index=trueIn 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_off000102b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B9 | 5764 bytes |
SHA-256: e0a1f75a457c22326aa76c3d8db40e1cacd2066ff77c34c5d5e5c17aa8ddc891 |
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font_01_sfnt_off00011644.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11644 | 11108 bytes |
SHA-256: 5a9b9f61ab43021e0a0796ef2dbbbb8b37507a9d37285fdc51a9d9347bcc27a3 |
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