MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that function as a link farm, directing users to various external websites. Heuristics indicate these links are often hosted on disposable or compromised domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://chcial.ru/uplcv?utm_term=come+spostare+foto+e+video+da+android+su+scheda+sd
- http://szyldkj.com/luodan/images/userfiles/file/57092759426.pdf
- https://ldoris.com/upfile/files/20210922174846.pdf
- https://108pizza.pl/uploads/userfiles/files/47243026943.pdf
- http://noxsun.com/jingkelun/userfiles/files/20210924182033.pdf
- http://araratmebel.ru/img/file/87385917708.pdf
- https://neurondevelopment.org/userfiles/file/livokuxeridex.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/72175311200.pdf
- http://araulmor.tel-cor.com/images/library/file/tedajowugexe.pdf
- http://gavionescodeinsa.com/userfiles/94534049974.pdf
- http://www.alex-vasilkov.ru/images/wisdom/file/somud.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/48ba5634b889d834ab2242b24199f47d/31120661512.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/493b07eac8b4da07e43673eea594fe5b/wipefijabotawo.pdf
- http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/322361665.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ccf826d60---ropab.pdf
- http://www.scsk12.org/policy/files/files/zijifuv.pdf
- https://aordonez.com/images/contenidos/files/61655329995.pdf
- http://studiocommercialedelpiano.it/userfiles/files/jikoxukesawe.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/1499h9sq9u3vcbv5hu17i06l76/96576419271.pdf
- http://www.sloepverhuur-debiesbosch.nl/upload/files/musapafukir.pdf
- http://tokyoto.pl/UserFiles/file/molakunovoke.pdf
- http://dailyxedayhang.com/userfiles/files/52696880521.pdf
- http://baschin-heizung.de/meineBilderAlbertGrundschule/file/14487647839.pdf
- http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/73240812049.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_off0000b966.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB966 | 16792 bytes |
font_01_sfnt_off0000d17d.binbb6a80e20627a41baf577a213034c08fd60e691cc38b8144149ea326f93771b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD17D | 11036 bytes |
font_02_sfnt_off0000eb0d.bin1bce43e37531bea00ecf2399db28b339fe08d1b31dd0f6e164871767e71c1283 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB0D | 18556 bytes |
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