MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload storage locations. These links likely serve as a distribution point for further malicious content or phishing attempts, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fd14c09e9---68201504121.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/c0da1b3fe9b97b564096f69f09238e95/58034775213.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/317166b713c112839c4a54394c2321ba/wipur.pdf
- http://lapenya.cat/imgjovesnaves/file/mobojezekovijupudedobure.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/2s440ch0eohbn114c6fcel9t52/lopupefozepagujerusan.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd440edcd14---gumosipubobozadon.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/ddef16a4650f6789f09386e6869932e9/levexasopuvapi.pdf
- https://webtechnocrats.com/upload/file/pajogilekogexetonorosug.pdf
- http://rayer.cn/d/files/rebamabosevunemuwukiwavoj.pdf
- http://mnarch.it/userfiles/files/jufabugakunowomos.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/a0c23b95158a0e9b45bfd60db123aea5/31901529.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161141261a1aec---fudidamuvakugu.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/4e4ba1b4d1969837b73dfbfbac72622c/wejavolilur.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16073f002a145d---57091087300.pdf
- http://master-br.ru/img/file/34057650968.pdf
- http://travelsi.ru/ckfinder/userfiles/files/99616159540.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/17ld3vnsisdnharcognvfa5l0h/3318604203.pdf
- https://anne-berger.de/sites/anne-berger.de/files/fkcfile/kotef.pdf
- https://westhigienia.hu/editor_up/magukokaxupatuti.pdf
- http://orderkiwicafe.com/uploads/files/vanunemit.pdf
- http://circuitoinsulargc.com/documentos/file/goliwubedijupiviroworu.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/76d82456a890d1ed288794a9f4daaf33/72197998860.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/3bb442370f09ee6d09792a73a8b1726a/97171082956.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/89v35tf01pc17drtjke8m14k6h/ziweduzonipesabupumasini.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/979909a6e9ac6fb96588dd39185d0071/zatixojara.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=nelson+biology+12+university+preparation+textbook+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_off0000c57e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC57E | 16792 bytes |
font_01_sfnt_off0000dd90.bin3d941c6034ebf0df02f102cdd1b51013a09ebc3170ed989ac1e478f19e277435 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD90 | 17284 bytes |
font_02_sfnt_off00010ac0.bin2c6592870b2c175b92ff7833876ecba85164bf2b3c9809014bd2bce9f5ac8e83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC0 | 11436 bytes |
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