MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of links pointing to various websites, many of which are hosted on compromised WordPress installations. This structure suggests the document is designed as a link farm to distribute malicious content or conduct phishing attacks. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/9fb73bc0bb1f9e24d95cb76521f5156b/27888684585.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16140bd145a569---tisanuwiwijinu.pdf
- http://sedaciesupravy.sk/media/file/29021781557.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/a2091312ec194aa75aa59867e3860df7/52706071033.pdf
- https://projekt-lesen.de/userfiles/file/95385399053.pdf
- http://nato-denkmal.de/uploads/file/36871380069.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/6f7e5dc72515a034b3da10d672f65976/lujesatutetuzijamatokese.pdf
- http://neboskreb-irk.ru/uploads/userfiles/files/noxilim.pdf
- http://studiolorenzino.eu/userfiles/files/keninuresum.pdf
- http://kozelsk-adm.ru/files/uploads/files/11435395911.pdf
- http://www.gamylai.vn/uploads/files/wutozujumetexef.pdf
- http://szzxwx.com/Upload/Upload/file/20219101047491185.pdf
- http://foto-preiss.at/upload_files/files/gufox.pdf
- http://uitvaartverzorgingsindex.nl/images/uploads/zomuwifun.pdf
- http://a-aqua.fr/ressource/site-image/files/79691209255.pdf
- http://hytechcommunications.com/userfiles/file/guvutulijivanigufawazose.pdf
- http://speckletrack.com/update/editor/file/94160611084.pdf
- http://besttailor.info/ckfinder/userfiles/files/pofogas.pdf
- http://dj-venci.com/uploads/pages/files/tafuwojixalebuzagakos.pdf
- https://cvzona.lt/resources/img/files/rixezevuvuxeneto.pdf
- https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/46104685719.pdf
- https://maintogelonline2.bet/contents/files/gepisobanugatukeni.pdf
- http://www.findvoters.com/userfiles/file/74108008469.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=scary+music+roblox+id
- 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_off0000fdb4.bin89e170692622fbd8f78ed2d1b43ec511d341286a33d81f23d035c7b66f859ab6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB4 | 10728 bytes |
font_01_sfnt_off00011657.binff889fb815f1f9ea8acfb48b851d615f8a330bdd26addcce8581dedfffde10dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11657 | 19996 bytes |
font_02_sfnt_off00014a3b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A3B | 16792 bytes |
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