MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous links designed to appear as legitimate resources, but they lead to a malicious redirector. The heuristic firings indicate a deliberate attempt to create a link farm for SEO purposes, likely to phish users under the guise of free downloads. The ML classifier strongly supports the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://crophysi.ru/strik?utm_term=how+to+practice+english+alone In PDF document text
- https://nimapefakapag.weebly.com/uploads/1/3/5/3/135324130/47677.pdfIn PDF document text
- https://gutamunimidujad.weebly.com/uploads/1/3/4/6/134667749/dutufub.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495409/normal_5fd90431c1b54.pdfIn PDF document text
- https://xonuguzuv.weebly.com/uploads/1/3/1/3/131382030/cbdfc2.pdfIn PDF document text
- https://fogunovavak.weebly.com/uploads/1/3/2/6/132681822/ronofenejijid.pdfIn PDF document text
- https://wezuzasiteva.weebly.com/uploads/1/3/1/3/131397996/7075284.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446382/normal_60642047cd03c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497110/normal_602f4d295697f.pdfIn PDF document text
- https://disadoxamegipu.weebly.com/uploads/1/3/4/5/134527150/kupizodu.pdfIn PDF document text
- https://kumakisatosoref.weebly.com/uploads/1/3/5/3/135328720/zudapetupiviv_navebowu_putomixa_fubobeja.pdfIn PDF document text
- https://wedutigumufezeb.weebly.com/uploads/1/3/4/6/134659425/8585363.pdfIn PDF document text
- https://niromegezos.weebly.com/uploads/1/3/2/6/132681660/5029496.pdfIn PDF document text
- https://vinifobak.weebly.com/uploads/1/3/5/2/135298549/6d1eee.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/zaxefemebidaz/boot_camp_support_software_5._1._5621.pdfIn PDF document text
- https://s3.amazonaws.com/kikunojulejuj/cuanto_equivale_23_pulgadas_en_centmetros.pdfIn PDF document text
- https://s3.amazonaws.com/xovekolamoxe/20854789510.pdfIn PDF document text
- https://s3.amazonaws.com/nosepevozux/50273965929.pdfIn PDF document text
- https://s3.amazonaws.com/lusabifef/85738125646.pdfIn PDF document text
- https://s3.amazonaws.com/sesafefanulokam/dinuvifegojubilipe.pdfIn PDF document text
- https://s3.amazonaws.com/bakoloj/kaxivosivam.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_off0000eeb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB0 | 5248 bytes |
SHA-256: 817b25f03b686754ff30cc9b185a2d85268111170c16a48d7e1c936fd45ebb1f |
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font_01_sfnt_off00010092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10092 | 10548 bytes |
SHA-256: 6f5e293c43ef9c27d82ae6dfc454f5d5e4bbae88b10c6e2d7c29a391f59830e3 |
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