MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://inwebjor.ru/uplcv?utm_term=yify+streaming+movies+free+download
- http://stainless-faucet.com/uploads/htmlupload/files/7621952237.pdf
- http://alarmy-kamery24.pl/userfiles/file/70384817100.pdf
- https://dansobentre.net/uploads/file/8961157786.pdf
- http://kolbiko.com/images/uploads/file/vovudoxijudepozegujare.pdf
- http://vibrator4you.cz/UserFiles/File/73042393953.pdf
- http://www.kickcommerce.com/userfiles/file/76084131173.pdf
- https://cafemocion.com/userfiles/file/29499797929.pdf
- http://farmina.ru/uploads/files/60939708736.pdf
- http://receptlap.hu/files/daputidebibotarunedigisad.pdf
- https://snf.styleguides.ch/userfiles/files/17021810791.pdf
- http://netcentricnj.com/ckfinder/userfiles/files/95483556510.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613677163f279---zanorevamipumumaboz.pdf
- https://onecre.com/images/content/files/35844097156.pdf
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/dozugawegojekekol.pdf
- http://euroear.eu/ckfinder/userfiles/files/pinopigakivevawudulesowi.pdf
- https://classoft.ro/userfiles/file/1737695086.pdf
- https://evermoral.hk/upload/file/1631076181.pdf
- http://files.ibiza-ferien.de/file/titima.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d638831be4---2116095922.pdf
- https://maribon.net/app/webroot/files/userfiles/files/vigapuzeninedegawizojevar.pdf
- https://astefin.ro/ckfinder/userfiles/files/3261097629.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16143ceaf52c9b---34666581585.pdf
- http://xnucleus.com/members/member_images/files/58527569627.pdf
- http://snnet.kr/board_pds/fckeditor/2021/09/file/ninisutozozolebaw.pdf
- https://birgatour.mn/js/ckfinder/userfiles/files/zelifoxijeranatuzagi.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_off0000cb52.binb44d5d63eb842e0f328361b25aa05144ec1d874010a7f5c33d810a39a1abe57e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB52 | 17036 bytes |
font_01_sfnt_off0000f745.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF745 | 16792 bytes |
font_02_sfnt_off00010f5c.bin43ff479c5eed7130592692ad76d3c05481e081b5d9df601167b2d372da68f26b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F5C | 10944 bytes |
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