MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to other PDF files, suggesting a link farm designed for SEO manipulation or to distribute further malicious content. The ML classifier strongly indicated maliciousness, and several heuristics identified the document as a link farm on potentially compromised CMS uploads. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 5
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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 http://energo-market.ru/sadm_files/binomevenolaru.pdf
- http://plncse.hu/php_data/file/piwefewogugudovejunir.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607541a9544bb---29766495267.pdf
- http://cl-pub.com/files/files/81623143077.pdf
- https://kingyao.com/uploadfiles/files/20210706_125040_1496.pdf
- http://ugyvednok.hu/userfiles/file/mebusuza.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/d0ceb207233b6392202c15cdf834f921/bopuzafupevamapajukaj.pdf
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/tufuluvo.pdf
- http://abacusnancy.com/userfiles/file/masigenatewibebixu.pdf
- http://zxpgw.com/userfiles/file/29349094536.pdf
- https://marblobath.com/app/webroot/img/files/fexifinefaduwofonavufudol.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/573f3824dca72302db1cb842c7e49811/jaresomuwidara.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5191f722fc---zubusupezuvakib.pdf
- http://kimhoatra.com/upload/fckimagesfile/miwapedunepuxazigot.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786f2773ffa---58221630362.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/21n7s8hluo8bhvf9g6ikfcjhsu/29648056856.pdf
- http://agendatourvietnam.com/hinhanh/file/73478487616.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/380f75f82cc52d42a091f0077977b3d8/93732847388.pdf
- http://www.cbs-emballages.com/upload/file/lafususoko.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160794581cb626---januderolowututiwuxif.pdf
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/c42955a7fcef140397939bddc6745036/lunegap.pdf
- http://yavuzselimvakfi.org/resimler/site/files/79809600205.pdf
- http://transchem-tech.com/Uploadfiles/files/tezobanoditava.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/6dr3irnj4e8551hvpln5ec22pn/rikokolo.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/03fb6bd0e2646ade1e41b5e1e5d9ab65/toduweraropivabu.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/4e0f907a7da599353917a3e179f602a4/26690712520.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=payback+2+mod+apk+old+version
- 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_off0000d7e7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E7 | 16792 bytes |
font_01_sfnt_off0000effe.bind13c166d9af96963bd01bb632251b4db257927e4dbe6a73f2af243706a623b6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFFE | 11112 bytes |
font_02_sfnt_off000109c0.bine624aa7feeef44b388359e3e71ad91fe6690f99fce569f3457c63249fce83bb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C0 | 16784 bytes |
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