MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of external links, many of which point to compromised WordPress sites and disposable domains. This behavior is indicative of a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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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://bharatceramics.in/ckfinder/userfiles/files/lelemagum.pdf
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/2547923c65d7d4db383b5f69c3c58657/wununixozixiz.pdf
- http://xsjsbzrw.com/uploads/files/ruvujugize.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/j97scro32e44ugvlr97rm1k4im/40556072154.pdf
- http://halaljones.com/uploads/files/pobenedejemotejodofufe.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413793f0597---nuletifipifedifuvijes.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1f87d95d3---xavilibujudop.pdf
- http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/zijagekazijufisajidizo.pdf
- http://legalinet.eu/userfiles/files/nebajifena.pdf
- http://geoplan.su/userfiles/file/wixiwonegulifitadavoremux.pdf
- http://hytechplus.com/userfiles/file/25846827920.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/f53fb19c75585f5ab8a182d889e2b96d/muwinafotadugikovisilu.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16149bd452f9f1---75825436684.pdf
- http://wangguanhardware.com/userfiles/file/97990222420.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149526d2d855---18234887318.pdf
- http://materialdeestudo.top/userfiles/files/gutafuwakudiwewajixig.pdf
- http://magnumprint.ru/upload/files/dexumulewivebegewiwava.pdf
- https://dadrarad.ro/userfiles/file/41872564676.pdf
- http://xn--80aamwn.xn--p1ai/userfiles/file/66763474998.pdf
- http://yokohama-model.com/userfiles/files/65766138602.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16147d71c67c8f---jigefodafosa.pdf
- https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/37473270157.pdf
- http://gpkoaee.ru/ckfinder/userfiles/files/7198433258.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=gtunes+music+downloader
- 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_off0000b3cb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3CB | 16792 bytes |
font_01_sfnt_off0000cbdd.bin58dc4833305d094b50b46f45c3767a34ea63a40235ada0c5ddea65267167f9ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBDD | 15704 bytes |
font_02_sfnt_off0000f3b5.bin688cf808451268b18138f43fdf985b799a4431a99d968f837539a49a5f28db2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3B5 | 10756 bytes |
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