MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://synerhu.ru/uplcv?utm_term=mobile+hidden+camera+apk+full+version
- http://clevio.biz/fckUpload/file/gewigexuxevutuwibita.pdf
- https://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/bunuvatozuxowawanosunar.pdf
- http://likuidart.com/files/ckeditor/files/73186887833.pdf
- http://bogaarchitetti.it/userfiles/files/776878350.pdf
- http://kingsfci.com/userfiles/file/58419275229.pdf
- http://strelnicebudejovice.cz/userfiles/file/viwobadapuxex.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/7ccb5c126fbd61cbaab29acc00a03c73/51681002133.pdf
- http://skisun.it/userfiles/files/jidufetemigelawet.pdf
- http://kaizousha.com/js/upload/files/kiruxoda.pdf
- https://eurochen.com/UpFiles/WebEditorFiles/file/sukiwotupitovelevoba.pdf
- http://ggbris.com/slbdavbatala/userfiles/file/21325955793.pdf
- http://a-kamen.com/userfiles/file/56156776951.pdf
- http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/jopivag.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16146b0af21333---kewaborotuf.pdf
- https://happyfun.tw/uploads/files/202109090320159757.pdf
- http://aapltd.net/userfiles/file/84505577609.pdf
- https://hbfilm.ca/resimler/files/lubafiluvitatap.pdf
- http://zvezda-rostov.ru/ckfinder/userfiles/files/18533778383.pdf
- http://broadviewlibrary.org/uploaded_bvlib/file/38581588202.pdf
- https://ezastupitelstvo.sk/editor_uploads/system/files/tupuzegemalabugonuni.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356bf62cca8---47792148150.pdf
- https://livstyle.ro/home/livstyle/public_html/uploads/files/mazigexulunamozajolipuj.pdf
- https://tiemhoamo.com/data/dulieu/files/62327540930.pdf
- https://theshamrockpublecco.it/file/30876782300.pdf
- http://jeykrishnaclub.com/images/file/kiruzezenopigepokixamoxol.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_off0000df71.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF71 | 16792 bytes |
font_01_sfnt_off0000f783.bin478195a3be98b150d53dcf64d41106070b5023103925d41d01ce7c6f8b1b5d18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF783 | 18028 bytes |
font_02_sfnt_off000126a8.binfe70da46c70491879ae3121d17c934d67165d4b172b492cf7ef215ecde87a61d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126A8 | 11176 bytes |
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