MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded JavaScript stream and numerous external URIs, many of which point to disposable hosting or compromised WordPress sites, forming a link farm. The presence of JavaScript suggests an attempt to execute malicious code or redirect the user to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://wfca-czech.cz/temp/userfiles/files/90541327364.pdf
- http://enjoyisagenix.com/ckfinder/userfiles/files/92972365674.pdf
- http://lovesushiscv.com/uploads/files/zanajemume.pdf
- http://ekotop.eu/userfiles/file/58200866788.pdf
- http://z-i-f.ru/userfiles/file/29943671873.pdf
- http://goldenteriyaki.com/uploads/files/dusewarijadezotofa.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/86098t01vr5bllo9tjm9jegs27/70169983908.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc1fa3473f---zopevifamamub.pdf
- https://olboihorgaszto.hu/editor_up2/3852517719.pdf
- http://zentrumok.com/userfile/files/96544828101.pdf
- http://popmetre.com/news/files/gusagenowofatujeriweler.pdf
- http://vandientuchinhhang.com/upload/files/15458544220.pdf
- https://gastriklandsbf.se/UserFiles/files/nidesaguw.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/1209573a9d2cd56a700e762e4dabd5f2/ligum.pdf
- http://kbautotech.com/board/datafiles/imagefile/53876081808.pdf
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/taxisufosasafolimulaf.pdf
- http://tantos.jp/js/upload/files/43537078484.pdf
- http://cctsw.net/whly/up_files/FCK/file/20210908_032933_113.pdf
- https://agencement-menuiserie-var.fr/stockages/files/tozuwimolomejotuzavawera.pdf
- https://thuaphatlaihoanghuy.com/uploads/files/59404428415.pdf
- http://autosoftware.company/autoresponders_images/files/setowizibarelaki.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=english+to+lebanese+arabic+translation
- 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_off0000f8f0.bind106f9a0d39984bfc65d609cfa7faa99c90e71795e87766a48c76d4c43917e40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8F0 | 18832 bytes |
font_01_sfnt_off0001298e.bin7e4eaed490d530e2b6a549fdd55111fca55a9ccda340f92c97f8ebe901b724ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1298E | 10632 bytes |
font_02_sfnt_off000141d3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141D3 | 16792 bytes |
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