MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to compromised WordPress sites or disposable hosting. This suggests the document is designed to act as a lure, potentially for phishing or to download further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://whkmradio.com/userfiles/file/81937088773.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/f6a65444d48ed4898fd2235535b628e1/41130826094.pdf
- https://chiataiec.com/userfiles/Proj_Name//files/67498172505.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/9a0df50748e9b9b1c20831113049f4c7/genozuminerofekane.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a544af4ddd3---75021837084.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4ce8ba648---99096318931.pdf
- http://flambotour.it/themes/userfiles//files/fuxadir.pdf
- http://autoklej.pl/app/webroot/media/files/rinupegimozenerenetex.pdf
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/144514ea58610111df1d1751ce5a9347/19849162562.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1984726d96---jewaxopu.pdf
- http://galluccifaibano.com/userfiles/file/62701813045.pdf
- http://tz5168.com/uploadfile/image/2021/05/22/file/20210522_183222_181.pdf
- https://rrr71.ru/upload_picture/3501195563.pdf
- https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/tesegajifukubetovavedi.pdf
- http://ingenermarket.ru/userfiles/99930437846.pdf
- http://rauvuonsach.net/images/uploads/files/73747429223.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610ccd661f58b---robodufirebuzififide.pdf
- http://fszhenjia.com/upfolder/e/files/20210607183053.pdf
- http://residenzaeden-albisola.com/userfiles/files/zidowanezibaludabig.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/3fc6f15832cd2a5e1c809150766302dd/9125825655.pdf
- http://mrspk.com/ckfinder/userfiles/files/11737503387.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=affiches+parisiennes+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_off0000c853.binee08c4617750133262d8cb47e627980da9f535b17dbace42fceb4c3734853570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC853 | 10436 bytes |
font_01_sfnt_off0000dfe7.bin6363035373cba58460e6fb5d32e808b7041e9fbfbf222db6932293eccb83a184 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFE7 | 18864 bytes |
font_02_sfnt_off00010fb5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB5 | 16792 bytes |
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