MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains embedded JavaScript and a large number of external URIs, many of which point to PDF files hosted on compromised WordPress sites, indicating a link farm designed to distribute further malicious content. The presence of embedded JavaScript suggests an attempt to execute malicious code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://tl-systems.hu/files/files/kabadasixeza.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608321c8d2313---kevurebekekunavitowo.pdf
- http://diamantina-joaillerie.com/ckfinder/userfiles/files/45030892636.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/1eba84828efed94634a4992727b48f6e/jilusudemomutuxikunipof.pdf
- http://kingsauto-bar.com/js/upload/files/95878954983.pdf
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/7b3c5c4659e6ae17476dac145b5ed6dc/67510476992.pdf
- http://falerisztika.hu/tmp/soropa.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/cva0lmusmcosakb8ke7opfnak9/megemizugefu.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/3956678747.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607bebe646482---31633541492.pdf
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/gs1d8tb7f2d0ees69pdl06bv1p/kumilovibinimun.pdf
- http://motocams.cz/ckfinder/userfiles/files/7941537853.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4kfqrf2plkp5ipsnh38ldqo1q5/jazeniferefane.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087638a3ce4d---gusoxalabokegodi.pdf
- http://nhakhoasaigonkimcuong.com/uploads/images/files/14348153613.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/17209298350.pdf
- http://komputerzagrosze.pl/userfiles/file/fuwukurajekalovat.pdf
- http://fine-cottage.ru/userfiles/files/faxekedekudewatumaxenax.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089c1aeec46a---19647259462.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a5dc5385acc---zugitudezodusafezox.pdf
- https://betalinktech.com/blmedia/file/73870058754.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077c74e503d0---rosowiwegimuzikedume.pdf
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/e35f228fb53be5d8b9bbcb7aaf88dc05/jijuxagasibidoxi.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/69fa3c1a6643f1f47a94ffdf58304807/mivevixajezaxavuwasiz.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/r2nv960leh1nnnbnbun6bgk830/50671192091.pdf
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/89216352457.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=setting+up+a+subnet
- 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_off0000eb79.bin6174297af54025db76c906562068ec55c87b493dcebdff451aa6a56218f60303 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB79 | 16528 bytes |
font_01_sfnt_off00011657.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11657 | 16792 bytes |
font_02_sfnt_off00012e6e.bin17c9bc70c4cc8eace7d2ee5261d912495b975ee8e22f9521b31991b2e53b07a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E6E | 10476 bytes |
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