MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple distinct hosts, many of which are associated with compromised CMS uploads, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9858
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 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 http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b59c53d5f---fonozoradatoriposifovaza.pdf In PDF document text
- http://alltechsro.cz/files/66684380531.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/vl6ii57vaqgdj97oa9jmhbnvjn/40099848159.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/99523931130.pdfIn PDF document text
- http://saopauloairporttransfers.com/ckfinder/userfiles/files/bugeliresunosebopevakox.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608db1a06c8a7---24551793720.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160766a5a42124---69165215842.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16070448a55e0b---94972193653.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/1957979253.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/mafiboluxof.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-5-3/20210503115919603640.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092887433357---govesalitesubodoloveluwul.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16076260e8db86---4459027980.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc01108ef4---41862677790.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d1367312842509c321b0536f5d2beff0/woxolikenat.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc7afbd152---juzedodotazixixu.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/68a52402102e95df9e78c9613dba3691/32115884601.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/0qtg64u4mv8sjag15jk63e44cm/8374383973.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/d93a68d88b5e4ff13c56d9f86f4e908a/jirigurejojujemox.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/tojanotul.pdfIn PDF document text
- http://dunajecbiala.pl/upload/File/40371057598.pdfIn PDF document text
- https://joebalogh.ro/imagini_ws/nokinilizakiwagibije.pdfIn PDF document text
- https://ambient-interier.cz/files/files/tevavanuwowu.pdfIn PDF document text
- https://chiuman-hk.com/images/file/kepopatibokewasup.pdfIn PDF document text
- http://mp-hd.de/data/aktualnosci_imgs/file/bunufo.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/96275552831.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=identification+in+microbiologyPDF 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_off0001723b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1723B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00018a52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18A52 | 10856 bytes |
SHA-256: 0cec42f97c70d8ee22415efd5254b0dbb93f7813906a2292b55a940d05d8591d |
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font_02_sfnt_off0001a326.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A326 | 18736 bytes |
SHA-256: 240c74b4022fea10d341d66c69eb82de5124a3fed9cd201e2ee3ca10803e0afa |
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