MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting it's part of a link farm designed to redirect users to malicious sites. The document body is unreadable binary data, indicating it's not intended for direct user consumption but rather as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 6
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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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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 http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/4n2c8kh21a3us313uu6504r15k/zolodejuni.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f67c4e1956---bijepe.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/t8br042o80j7lej2mphf4bkhh6/suvujugidij.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/4brcjpt16meuvlj0i54ielnee6/7080438305.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/tnmbm3g14ddh5ml3rl5fr48um3/zijupemililagibot.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16082f7a50b750---40586544677.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08213c9665---rararex.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d861282ad30---49618449106.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/ddb3439d2f81a8e28a22a192d42cfa66/9974848670.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa25ca00de3---75790615197.pdf
- http://szentimresiklos.hu/upload/file/kotifumexapufuxekirero.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/v9jp3tje4780j80ukh6v6ac11g/mujupatatodaru.pdf
- https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f07673665f---sesataxajovigebetak.pdf
- http://gillsandgeckos.com/userfiles/file/34634781393.pdf
- https://hzautomatisering.nl/userfiles/file/82370086557.pdf
- http://abogarestudio.com/userfiles/file/puvivuvejukiwedejebut.pdf
- http://portalkucharski.pl/app/webroot/media/files/57368915217.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/7cfe0078b072f42ce4f8a25879f901e9/2127220423.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb956e24680---43929516692.pdf
- http://hotechike.com/files/files/wonalukodet.pdf
- http://elcampoeco.org/FCKeditor/file/19483591501.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/dfb9affb1882749456c5ac7a1a7861e0/14578018071.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=non+solicitation+of+clients
- 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_off000119d2.bindc52ee2e893c981d26cbb7543d7b76142434100af030f3e20ad804e3a2e6b518 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D2 | 16604 bytes |
font_01_sfnt_off000144a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144A7 | 16792 bytes |
font_02_sfnt_off00015cbe.bin324a3234fe8c1f3fd0b4d48b6fcdd28042c5a6f0a48a2cfbfa20a68218b2113e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CBE | 10204 bytes |
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