MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and numerous external links. Several heuristics indicate that these links point to compromised WordPress sites and are part of a link farm, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/334541a03348b7917c642457fc09d839/9864899742.pdf
- http://aqbnb.com/uploadfile/file/32149093610.pdf
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/2358678c26d2d43c400b81a4539cb394/zuzufivevi.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/61gjicesiq4cgdq2ts1aac45tr/veresewogedefabaw.pdf
- http://www.ortodonciaelisafarache.com/ckfinder/userfiles/files/fovezewuvupexudegofo.pdf
- https://svetplus.com/userfiles/files/wotitanufagugole.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/r4215rruj6un1u7h3ek306kc5l/17784282297.pdf
- https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/a371c5276c7689a32deca100678d7170/18863893934.pdf
- https://umartravel.com/files/34414557878.pdf
- http://nguyenquangcomputer.com/upload/ck/files/rejinebiwurisoruterafifa.pdf
- https://alperbehang.nl/userfiles/file/motever.pdf
- https://www.koreayokogawa.com/ckfinder/userfiles/files/piramivuxoti.pdf
- http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/80360682792.pdf
- http://www.monts.sk/upload_images/file/82866342508.pdf
- http://santabruna.cl/upload/file/94854337721.pdf
- http://navigator-33.ru/media/file/rotofarugivipomirojofa.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773ff769768---80493880634.pdf
- https://orldoc.ch/wp-content/plugins/super-forms/uploads/php/files/9q26dqcrk7ihahosbah9bhii64/99607279519.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/ca37d83e8a0251a7e729f2350bcf5c8d/jetiveberamonex.pdf
- https://seeyounow.net/userfiles/file/vapafa.pdf
- http://dtcguild.org/clients/80367/File/46366521946.pdf
- https://restavracia02.com/userfiles/file/konilalikasusoxu.pdf
- http://consulcongress.it/uploads/assets/file/49149009790.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/1236a86ee7358da211da88b62a397a7c/74598329747.pdf
- http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/39168878828.pdf
- http://auto-spec.ca/fck/file/91832261147.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=atul+purohit+garba+mp3+download+320kbps+free+download
- 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_off0000c7b3.bin6b21fe0f9f969b22f830b85d381c3940c64d9950dfe1b99e659be625498bd689 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7B3 | 18648 bytes |
font_01_sfnt_off0000f72b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72B | 16792 bytes |
font_02_sfnt_off00010f42.bin4201ef82642767ee9ab6cd36f8ab2367444ca6609d6805b42e500dabec4fa335 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F42 | 11756 bytes |
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