MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised or disposable hosting. These links form a link farm, likely intended to redirect users to download malicious content, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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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://nomylo.ru/uplcv?utm_term=sword+art+online+game+android+apk+free+download
- http://gibisch.info/files/files/94883248728.pdf
- http://www.tramag.pl/upload/file/bibivazexunazufijer.pdf
- http://digitalpolicycouncil.org/imagenes/file/4741911161.pdf
- http://career-id.org/ckfinder/userfiles/files/gapawedunegotawuletebidu.pdf
- https://argumentua.com/i/file/86155682020.pdf
- https://needlugs.com/userfiles/files/41660725675.pdf
- http://cmorshomecareassociates.org/uploaded_files/userfiles/files/ritudufopubiradudesumaf.pdf
- http://kcpsystem.com/userData/board/file/19656337635.pdf
- https://filetorme.com/upload/files/wanemalutiwujumi.pdf
- http://e-instar.com/userfiles/file/zilelizupepelirevaf.pdf
- https://pelicanfinancialnetwork.net/ckfinder/userfiles/files/famapipelugovarokul.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/9a771cdd5e63edde29902493fb19d523/kabifizivenazaxegij.pdf
- http://nedirajtebosnu.net/userfiles/file/nepapidaza.pdf
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/60149532307.pdf
- http://gps-ambroisie.com/ressource/site-image/files/34600342519.pdf
- https://s-h.cc/uploads/files/202109091316548149.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/0433154180f9a7310dc2743880fc7c65/73651895099.pdf
- http://alituncer.net/userfiles/file/70549914471.pdf
- http://www.greddy.com/admin/common/ckfinder/userfiles/File/27341352705.pdf
- http://www.siposferenc.hu/html/42002070742.pdf
- https://eghamatsafar.ir/basefile/eghamatsafar/files/vafudovupexuw.pdf
- http://autosoftware.company/autoresponders_images/files/wezikozejexaseluwusuzinef.pdf
- http://aktifithalat.com/resimlerfiles/zubotevufoza.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142e86f2a460---nidugopikimoxejen.pdf
- http://tauroconsulting.pl/userfiles/file/davajufevawiladorem.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_off0000d641.bin9acfddf1a669fdb4de44210d345634c5eddabc9c6d33dc9ced89019b3191a738 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD641 | 10928 bytes |
font_01_sfnt_off0000ef5d.binbef794b24e4d95ed261c672e2358411cd9477924bb615ea889889d982f4aaab3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF5D | 17560 bytes |
font_02_sfnt_off00011c24.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C24 | 16792 bytes |
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