MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support the conclusion that this PDF acts as a lure to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 6
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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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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://laborke.ru/uplcv?utm_term=realtek+hd+audio+manager+software+download+windows+7
- https://al-wesam.com/userfiles/files/29294584401.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/5a1300586f03430d96149792ae03e202/xinifagevifitapobutijot.pdf
- http://karmand24.ir/basefile/ehotel724ir/files/dojixuboguruvuge.pdf
- https://h1t-url12shio-turbo.com/contents//files/denob.pdf
- http://frangarcia.eu/upload/file/vesudu.pdf
- http://saikunghouse.hk/userfiles/mododesitawipos.pdf
- https://educhina.mn/editor/files/83571351774.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0704cdec1---safagojavazivakilojevoxax.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/1de150e63c1c89fae24d3760a52e5f4c/juvetada.pdf
- http://szguilong.com/userfiles/files/46753000490.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/taaiu280bok6c6c88m2nkg28kv/vesimovozebojuke.pdf
- http://agnieszkapawlik.com/userfiles/file/damapirize.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b1a6584a7---63908963533.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1cc659a9d6---43060553351.pdf
- http://esipro.fr/userfiles/file/84664612074.pdf
- https://secolink.sk/userfiles/file/legazuk.pdf
- https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/71484478906.pdf
- http://angelcabrera.com/FCKfiles/file/judixegonam.pdf
- http://zimaletto.com/uploads/file/xunoxolukadotorosor.pdf
- https://catwalkdogcome.com/editor_upload_image/file/dodizitiru.pdf
- http://35ct1.com/images/ckImageFiles/files/49730217236.pdf
- https://htchninc.com/d/files/68581793067.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093e211cf378---98681471969.pdf
- https://sabagdasarov.ru/upload/file/46303553165.pdf
- http://cnkls.com/userfiles/file/1628504420.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e89c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE89C | 16792 bytes |
font_01_sfnt_off000100b3.bind502a2beba530e1d455a2bf6a6d9eae8439728472d91e99b2a7d9721ff06a02b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B3 | 11172 bytes |
font_02_sfnt_off00011a84.bin9b6157f31e1a238133112a9567637a75b9d8999e7c7940794bc20c5e9eabebe3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A84 | 17516 bytes |
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