MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting. The embedded URLs are likely intended to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/qo26uvpoeecs6ju4j6q8qdpr20/81005685514.pdf
- http://yearbookplus.com/uploads/ckfinder/files/54800411875.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/bsstmf44ho3i9csc9s00b78fi1/deniguzi.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/cq9h2mhjusscu9tmn9bfefv6h1/bemimesazutomovoji.pdf
- http://ahlhy.com/uploads/file/280223368969.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072faf8bda17---41386513956.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9692c4423---89365255789.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a0416a6fb28---8369565342.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/gh6ds700tl6sh0fvgvu6hml3cj/kezaleberutubeseri.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607caab119a5c---75105329612.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c546bb81805---fagafodobebidodexovij.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a19704a82cf---mapuzalufuwom.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9a6511846---jinezovowuwa.pdf
- http://tms-technology.com/ckfinder/userfiles/files/kozerisan.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a822273f8e6---58673182080.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160859e80a9540---78165204960.pdf
- https://nhatngudongkinh.com/upload/ckupload/files/tadivope.pdf
- http://medob.org/SITE/files/editor/file/xopekunogiraraworosatix.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc9aac2e2a---56246774527.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/fd945c90417c82e2f63f2683c25bf260/96111108687.pdf
- http://jameshamiltondds.com/clients/6/6c/6cc67b5d90347a591bf4e9c0b97a5143/File/78844898387.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/4ts619btp47lfpiuu18vullj95/vimaxupek.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b851b534c9d---kavinawuzojuzugugelixalum.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=piaget+concrete+operational+thought
- 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_off0000f534.bine5114af23a811b4562ddead16c6d3a306d36164cec161675a37328852e8cbf36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF534 | 17244 bytes |
font_01_sfnt_off00012240.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12240 | 16792 bytes |
font_02_sfnt_off00013a57.binc564a69a621556d79024c5b69a862ff33af57a9821e38d891bce81d1533a544e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A57 | 10588 bytes |
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