MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links pointing to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/b837520497edaaa7fab3566188863f14/goxapabosatawutidu.pdf In PDF document text
- https://baongochoa.com/upload/file/9891611349.pdfIn PDF document text
- https://divinenine.net/userfiles/file/kuwinidulajesuwid.pdfIn PDF document text
- http://alanaf.ru/userfiles/files/76583055210.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/ae3e2c5c73b617affd8885aa7527e1c2/zujezarirax.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/chr1oqlrspl5fafm1q3ov7ndl4/bagowijidufevigimufi.pdfIn PDF document text
- https://dovolena-jiznicechy.cz/uploads/80044250185.pdfIn PDF document text
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfad7a61df1---49937931379.pdfIn PDF document text
- https://hogies.com/includes/template/uploads/file/41857410153.pdfIn PDF document text
- http://austria-ex.com/images/blog//file/bisulugifomowujisanuri.pdfIn PDF document text
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/cb77f73f2d7f30115591cc5f2f227eee/jolixagugotinapatid.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ee492de16c7---95401717449.pdfIn PDF document text
- http://harrisonfamilyreunion.org/clients/868801/File/38314631161.pdfIn PDF document text
- http://massimosusto.eu/userfiles/files/momasobuzox.pdfIn PDF document text
- http://tydafa.com/dafa/uploadfiles/20210608201906.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16083214b22588---45772675888.pdfIn PDF document text
- http://hongpakthai.com/ckfinder/userfiles/files/13147268540.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/c4193b0a43d1e9e24f00988da2a6a723/8865721453.pdfIn PDF document text
- http://shinies.ru/img/lib/file/gesaxivodebikekin.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/uja8e0mimkhclth5q90qhlt4fe/67287895320.pdfIn PDF document text
- http://cezanart.com/userfiles/file/11605843663.pdfIn PDF document text
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4b896898b---74537418467.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/jk870rc3ighrkns0jjfri0vqmb/dosozonidolibizusejosag.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0553e63e8f---pivakelatedosapijenuxofo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=mp3+somebody+to+lovePDF 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_off0000ef80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF80 | 19588 bytes |
SHA-256: 51ece9b5adcccc59348fee977e9fb60f91716fe5f5744aa967c5e35f8645d170 |
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font_01_sfnt_off000122ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AC5 | 10580 bytes |
SHA-256: 45666a9670c8c367416098ce414a90ae23436834ce00982cceec56b00101c0dc |
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