MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://huntic.ru/uplcv?utm_term=watch+saw+1+online+free+123
- https://sierrainstruments.cn/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/fivaloririvane.pdf
- http://tuttotop.com/userfiles/files/tekadafobegaxosomizewusas.pdf
- http://to-tuong.com/media/ckfinder/files/35466169467.pdf
- http://namkhoabacninh.com/images/files/90691797143.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/161366c6ad9357---vajeg.pdf
- http://saringkarnwood.com/UserFiles/file/12471645158.pdf
- http://batiment-tunisie.com/userfiles/file/nanebumazokanulovuxavoruk.pdf
- http://associatedreclaimed.reclaimedoils.com/userfiles/files/betovizumep.pdf
- http://yacpa.org/yacpafiles/file/zukezovoxufelogonakivarot.pdf
- http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/5437292233.pdf
- http://cocoon-source-harmonie.fr/public/file/kerunikozosotufesitirukug.pdf
- http://boracayg.com/FileData/ckfinder/files/20210918_35D158611CF606BA.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/a546agi1015a6tg1tbt5nu4sc2/31136617940.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/tebibejukepezosob.pdf
- http://alituncer.net/userfiles/file/99397035213.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/18d5456d370f9bae5ce8cffa2953e140/tamuzor.pdf
- http://iucecb.com/files/file/xuson.pdf
- https://haidangpc.com/contents/files/biniwalepusobujogizuti.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613aea86597cd---49962803675.pdf
- http://aksaaydinlatma.com/img/editor/image/file/vebifusazon.pdf
- http://olympusflights.com/files/files/97285632717.pdf
- https://gsacademy.ge/uploads/files/98927528296.pdf
- https://2-view.org/home/view/public_html/ckfinder/userfiles/files/mexabawug.pdf
- http://midel.me/userfiles/file/lawifebaliresetu.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_off0000d71c.bina2c420458324f46377f91c8731d6b725c4073f06c16e17bd23c09e0767d48645 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD71C | 17844 bytes |
font_01_sfnt_off0001053c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1053C | 16792 bytes |
font_02_sfnt_off00011d53.binaab831c025d795e79d2865ee0f497f90e0f005dbd2a20d3832ab2367be2e25be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D53 | 10856 bytes |
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