MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Numerous external URLs were extracted, many pointing to PDF files hosted on potentially compromised websites, suggesting a link farm designed to redirect users. The presence of a 'download button' heuristic further supports the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://medvor.ru/uplcv?utm_term=samsung+a8+custom+rom
- http://fatamorgana.fr/uploads/assets/file/luwijidafiradom.pdf
- http://hitecds.com/userfiles/file/28900178428.pdf
- http://limoride.net/gallery/file/getibiverawalafabug.pdf
- http://lnshiyue.com/userfiles/file/20210902012308_222738457.pdf
- https://rosanaalvarracin.com/userfiles/file/wazetobovaluzalidodipen.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137c646e3e31---60964714198.pdf
- http://shriadinathbank.com/uploads/57087801874.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ca9a0902f---nixivixusugem.pdf
- https://www.hippocratio.gr/ckfinder/userfiles/files/1078798591.pdf
- http://coffee33.ru/archive/file/sapepagidusuwexu.pdf
- http://ipublicity.cz/data/file/gaboderowilubupokofo.pdf
- https://thaiwoodengames.com/files/upload/files/48104222339.pdf
- https://manhremhoangvan.com/wp-content/uploads/files/sujagetod.pdf
- http://forepic.com/_UploadFile/Images/file/ratanewadikinimulun.pdf
- http://weilandensemble.nl/ckfinder/userfiles/files/zizatadobegafewop.pdf
- https://fanaf.com/article_ressources/file/mutaxemawosozetewukine.pdf
- http://tostonet.cl/ckfinder/userfiles/files/faxowapuwuxaxagedovibij.pdf
- http://maginsaatmetal.com/resimlerfiles/womudepugekufipopipitevu.pdf
- http://xmzs.org/userfiles/file/69282606132.pdf
- https://bilalyapidekorasyon.com/userfiles/file/37190995014.pdf
- https://tybistanbul.org/resimler/files/38222630234.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a25f975089---4307896159.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/3a28b8c2534f068d5ded8fbe4bcf7e6b/22410177529.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146313bdb466---kikejefet.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_off0000e2a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A7 | 16792 bytes |
font_01_sfnt_off0000fabe.bin1dcd71cf8fe2ae24edc3c43e4b6857445d09689fd47b6a4a428f1b25a7cc23bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFABE | 10688 bytes |
font_02_sfnt_off00011339.bine65e68c3d82437c21a18d82044c665d373d4521435a5d1a43c3f4fea45094381 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11339 | 19356 bytes |
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