MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external URIs, many pointing to compromised CMS uploads or disposable hosting, suggests it functions as a link farm to distribute phishing content or further malware. The primary attack pattern involves luring users to these external sites, likely exploiting vulnerabilities or attempting social engineering.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://dagvandearchitectuur.be/_files/file/zaxewukewededajalogojedu.pdf In PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3ff4c1d02---vikigetexufewadafag.pdfIn PDF document text
- https://art-gallery.mn/uploads/files/denojelezusemipetu.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/161344f9658592---nevavarogawavukivotu.pdfIn PDF document text
- https://noventa.cz/media/files/file/wimegalasikuzamo.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/givesefoxerubovukimataw.pdfIn PDF document text
- http://hengtongrongshang.com/jingkelun/userfiles/files/20210923122106.pdfIn PDF document text
- http://reliancefla.com/admin/images/file/46471477478.pdfIn PDF document text
- http://huijingweb.com/upload_fck/file/2021-10-6/20211006141010305119.pdfIn PDF document text
- http://www.pantonerestauri.com/ckfinder/userfiles/files/31748936369.pdfIn PDF document text
- http://cabini.it/userfiles/files/14763463035.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/kodapevidavijagumewede.pdfIn PDF document text
- https://cafeau1ait.xyz/js/ckfinder/userfiles/files/52961676775.pdfIn PDF document text
- https://tannhatviet.vn/upload/files/pozejakekabowotamagude.pdfIn PDF document text
- http://orsini-blasioli.it/userfiles/files/70999970944.pdfIn PDF document text
- https://majubesar.com/contents/files/16011833082.pdfIn PDF document text
- https://quatcongnghieput.com/uploads/files/65996287117.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/xezuw.pdfIn PDF document text
- http://vitalbafitnessclub.eu/userfiles/files/71166872149.pdfIn PDF document text
- https://cebubigsellers.com/userfiles/file/mixilux.pdfIn PDF document text
- http://korea-labels.com/ckfinder/userfiles/files/42182288545.pdfIn PDF document text
- http://cjpharmtech.com/upload/files/26622137597.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/161607f7dddaf3---jobipimegodidinivi.pdfIn PDF document text
- http://all-premium.com/user_file/files/fewuwimemalesij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=kenneth+hagin+move+of+the+holy+ghostPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c02d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC02D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD844 | 10732 bytes |
SHA-256: e913448237c11807e8ee71a59507e412b31cebbedb5fc8c7decd383844c0f180 |
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font_02_sfnt_off0000f0c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C8 | 16860 bytes |
SHA-256: da291688408cca4bcfbe184732f1367ccf891d4f3ae91b80ae8695c44be2dc3b |
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