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 numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded JavaScript indicates potential for further malicious actions beyond simple redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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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://mertlakustika.cz/images/pages/file/dotegukaw.pdf
- http://zatacorp.com/upload/files/vuzowe.pdf
- http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/17447856988.pdf
- http://officinedesign.it/userfiles/files/25117824021.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/44318585050.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/161387d75d501c---20904608511.pdf
- https://kitapkapla.com/upload/ckfinder/files/20224012350.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210911025409893151akxtgw.pdf
- http://contua.org/userfiles/file/juxadawuxexuperizaj.pdf
- http://delta-serwis.pl/pliki/wixeg.pdf
- http://bowlingkillers.com/imgdb/files/jijarufasikegov.pdf
- https://havilahbuilders.com/userfiles/file/83087149953.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134341088255---nepagajojipapoj.pdf
- http://style4.allwebeasy.com/userfiles/files/30683542430.pdf
- https://alarouba.com/ckfinder/userfiles/files/47783310003.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e7371d582---xolaxidedipivexoxafokelu.pdf
- http://atel-j.nl/uploads/files/nokububigini.pdf
- https://phatgiaolongan.com/upload/ckupload/files/taratog.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/f89ae5rkcc7pn8lgfim1hcmlkd/26864828077.pdf
- http://ieltsadd.ir/cache/fck_files/file/vusizuzowunewasopazi.pdf
- https://korovin.org/site/img_ufiles/tomoxifunu.pdf
- http://yuc-fac.com/uploadfiles/20210913024624.pdf
- http://shinhwajudan.com/userData/board/file/32157483202.pdf
- http://nguyenthaotech.com/upload/files/jametuneju.pdf
- http://ubest.ru/images/file/79720203442.pdf
- http://ranahytta.com/ckfinder/userfiles/files/nazomi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=moana+full+movie+online
- 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_off0000dad5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD5 | 16792 bytes |
font_01_sfnt_off0000f2ec.bin5954be3252b46252084777578b95cb52d0c30db52c5d20b0bdbb859c0f2c0400 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2EC | 10168 bytes |
font_02_sfnt_off000109a3.bin2c35460431c9ebf19401c0993690d6ace042d70a50a843057f3d198ba95cab24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109A3 | 17188 bytes |
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