MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to compromised WordPress upload directories. The ML classifier and ClamAV both flagged this PDF as malicious, indicating a phishing or trojan distribution attempt. The primary attack pattern involves luring users to click on these links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 https://aduanaldelvalle.com/userfiles/file/66075140748.pdf
- http://ufnk.fr/app/webroot/files/file/51144664529.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc6ec9030b---fitovorogifudi.pdf
- https://cgeminfos.ma/upload/file/66461214210.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/c699aa1e90c1eb17f113e45ab6b469f8/paravuditifonabebobisi.pdf
- https://pasarantogelsatu.com/contents//files/masafijuzamivuzed.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/601e85adc8c1ef14bf59883077341003/nadosokosilimig.pdf
- https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/15089681680.pdf
- http://jjmcp.jp/userfiles/Image/file/28897376711.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b2030b357a0---bogalomodaxetida.pdf
- http://aahsclassof1978.com/clients/b/b6/b6117739535924054831d33ecd54b00a/File/19626293241.pdf
- https://moto-trend.cz/public/files/fck/file/50036017526.pdf
- http://pphu-joanna.pl/fckpliki/file/84777861496.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/aa8b79d419e5a894f3a3c0cb78a6b7fc/88585204690.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8e64a649b3---larejezubabemi.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a485d64152b---gosuvekivavozuzi.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1314008743---paloru.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607671151fd76---72604985319.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4213b4bd8---36955450325.pdf
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/01fe1166bb9ffe755915af2074b1f95a/36247619963.pdf
- https://loyallcanada.ca/editor_files/file/xatemupanofakamirewewaza.pdf
- http://agrobud.net/uploaded/file/turopizijubig.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=i+will+love+the+lord+with+all+my+heart
- 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_off00024e72.bin2fb3d81a8d014e6030b8b63236e527d5a6d6f0e8cde164174215dfc8408ccc34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24E72 | 10460 bytes |
font_01_sfnt_off0002663b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2663B | 16792 bytes |
font_02_sfnt_off00027e4d.bin9262ec8ce1bb1ad88dd8f3db4fb8f9c84ee9a57194acb3afb1ea5c05c4b4ed41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27E4D | 28088 bytes |
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