MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or initiating malicious actions. The presence of multiple links pointing to potentially compromised WordPress sites and disposable hosting suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download server. The ClamAV detection and ML classifier strongly indicate malicious intent.
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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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 http://medicare-darmstadt.de/bilder/UserImages/file/61973827504.pdf
- https://anmoul.com/userfiles/file/xezenadinonoporozo.pdf
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/a0om7bjf9chbu05cglvr6s3ogu/roxudawamakudaxenobo.pdf
- http://lacasedescaraibes.fr/file/rodemole.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609d197c515be---budusutefarerilapuro.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d20d067a8---42854856982.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b1400fc7f---17820505579.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad281ce4eb---38270057009.pdf
- http://www.jokilaaksonratsastajat.fi/file/31316798261.pdf
- http://anchor-m.com/js/upload/files/xulogefufonewofik.pdf
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/85490485856.pdf
- https://gberwanda.com/gbe/useruploads/blogs/files/dezolukezowopotinagov.pdf
- http://dermaktif.com/imgup/file/fikob.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6604f2dbc---mixadixujuvunidavo.pdf
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb3c2c8e60---50166081129.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/ec9fb0b4a2d0d70094a8969f809e0f7a/vesatadivetowot.pdf
- https://m-astar.com/UserFiles/files/31406878434.pdf
- https://deniz-sogutma.org/img/userfiles/file/42593626391.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbc7727bae---5847052238.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d1e6ae57168---zidowotukejojitenitoz.pdf
- http://ck-kutnahora.cz/gais/image/file/palomovazenexuwoju.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b414cec399---fomozinowodakuvejurujabe.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/5b0a28ecc8667d29be66e85f290c48e6/rasavobulexanevunodama.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=diary+page+template+pdf
- https://mediaget.com/userfiles/files/22213675189.pdf
- http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/tumiwo.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_off0000e163.bin9b6e52a3bf7049a59ffb77230320fc6bf25a7e3099d38e6bc5da64ed0f1c027f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE163 | 10564 bytes |
font_01_sfnt_off0000f94a.bine99d0f38dff8d234899d34b6f294d71c6b478ffc9a2b265b72b5b5e1c7962fb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94A | 17188 bytes |
font_02_sfnt_off0001262a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1262A | 16792 bytes |
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