MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains embedded JavaScript and a link farm that redirects through multiple domains, including compromised WordPress uploads and disposable hosting, likely to deliver a secondary payload or phish for credentials. The presence of embedded JavaScript suggests an attempt to exploit PDF vulnerabilities or execute malicious code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://winpoasia.com/ckfinder/userfiles/files/vifalanusizovajafapujet.pdf
- http://g-shocktou.com/user_file/file/12201457556.pdf
- http://studiotrusso.it/userfiles/files/fatosuranose.pdf
- http://fsgzb.com/upfolder/e/files/20210914083659.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/3a65973d620ddbf35481cd4ecf3eeeec/5611217833.pdf
- https://a-pointpro.com/cms/ckfinder/userfiles/files/suxolerikulif.pdf
- http://zoekidsworld.com/userfiles/file/2764753689.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136ca4ccaf05---41295099453.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614562ef4c6f7---21793614093.pdf
- http://kleinschadenexpert.de/userfiles/file/3640184514.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb1015b52a---59436578976.pdf
- http://jiangsutravel.kr/userfiles/files/20210913_194809.pdf
- http://bbbo.handyfriendship.com/upload/files/paxizelisupazexasularisaz.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/k5vhc2iv62i6r32jeqtel0tm52/61053962086.pdf
- http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/62586176740.pdf
- https://hattoco.vn/images/ckeditor/files/geguxa.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161400fd7ad916---45186443264.pdf
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb90f12fa2---56981827334.pdf
- http://sun-green.eu/ckfinder/userfiles/files/gipobawisefedubatemowuku.pdf
- http://cathugo-yachts.de/res/wysiwyg/file/91104257772.pdf
- http://straub-online.ch/userfiles/files/sesutugiwowotoguk.pdf
- http://dorrstrechy.cz/UserFiles/File/29812211135.pdf
- http://sasmedm.com/www/js/ckfinder/userfiles/files/divotuxukevu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=pokemon+hg+action+replay+codes
- 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_off0000f08d.bind87e6ceeb7b09fd13d213c2223906a97cbb2e63f8f7a9c79a81c6a6bf2aba0fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF08D | 11168 bytes |
font_01_sfnt_off00010a4f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A4F | 16792 bytes |
font_02_sfnt_off00012261.bin6967c42edd42d2b7c4734998148151246c4d8fba089c5a516c401f0a001bba3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12261 | 17880 bytes |
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