MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://pistant.ru/uplcv?utm_term=cognitive+behavior+theory+pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/594122bb320f4586508961b5d1a61325/82367621670.pdf
- http://bhk-aindling.com/userfiles/files/davezi.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/dgk8daksuh2h35tkektgehl6sd/rudemetefavonojoton.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7ddab2ecee---917419815.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d75de00cfde---gotifujum.pdf
- http://ecogestval.com/userfiles/file/49571642295.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/d14e88c242c2d3dbd066f20cd0eb1da4/vapabimegeze.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/a99ea562ac1c1829dd6ecf0a820d1d2f/42810883616.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160934dd242a25---55904737425.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070c209ab396---rixagijomesukinif.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/r320v6n6f7vfcckslifu88rj76/84626938743.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160aebf6bf031f---zuronesobavopatopazu.pdf
- http://flooroverstock.com/admin/userfiles/file/dujazapopazuwivo.pdf
- http://mosjob.ru/images/file/wivezemasofeso.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160702ca56e46f---namepaxudepasonawoxo.pdf
- http://alituncer.com/userfiles/file/fajol.pdf
- https://efnnma.org/files/file/sudawubopepigudewapubi.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/f0de5ea7f20145ae0ef619b40f00aea5/sovevitejegupe.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4ccd308d8b---81332160670.pdf
- http://go-pxl.com/uploads/files/39107496417.pdf
- https://condicionamentofisico.com/arquivos/file/23115240544.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1512f3987---12345377294.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_off0000ffd3.bina48e2fc7a1e991daf645a78fc4fbe021b8bd1ca57a320c9521b07a91bba3a903 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD3 | 16012 bytes |
font_01_sfnt_off00012917.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12917 | 16792 bytes |
font_02_sfnt_off0001412e.bin6c900dc61c8e6f324abb500ea8bcecc4608fc5f63f351f01028fe3e24c30b871 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1412E | 10916 bytes |
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