MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a machine learning classifier and ClamAV, indicating it is likely a phishing or malware distribution document. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, but the overall structure and URL patterns point to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://vestol.bg/files/file/noriremenojunove.pdf
- https://bursac.net/userfiles/file/4215439947.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a634975e572---fotowuwuxemo.pdf
- https://n-zvuk.ru/upload/file/xuxolek.pdf
- http://www.bufolari.com/public/immagini/file/pediwowavajujodefowoxub.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acd5c9c329e---31505803080.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4711c8a65---82403072573.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b8d0d8bd2---wadozefu.pdf
- http://sarlampa.ru/upload_picture/sumafezotelipozol.pdf
- http://domholidays.com/userfiles/file/wudozipokokotuwob.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc52023efc---47971094332.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/862975cf90a963d1d14c83fe40c6a2bf/69505537501.pdf
- http://botosani.ro/img/uploads/file/sufejesebawawelabuxisape.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/78bae754dd318a22653188ff345279b2/mozobexepujawinujifi.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce2f59ba1d---kubanivozodusad.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d35aa78db7f---wexizuxapovuxasidejaboj.pdf
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16096ecdca0540---xuruzajevabakesibegowijus.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/475b1a844af15a562aefef2e6db7121b/65821349262.pdf
- http://adams-gold.ru/archive/image/file/78513904460.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/av0od60ihbkb3srvpclddfoq0p/sugekalexebat.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/16090499a5a239---73934897175.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=vertical+columns+on+the+periodic+table+are+called
- 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_off0000ea24.bin25871425b7ed84b3b5b7aa571f1705116546ffd962f4b583dc92b7ebded4f13d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA24 | 10988 bytes |
font_01_sfnt_off00010339.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10339 | 16792 bytes |
font_02_sfnt_off00011b4b.bin65a65431d1e17642dc542f27203db4dc26a3cf3afcff2464879a684dc4a1569d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B4B | 16832 bytes |
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