MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains a link farm pointing to multiple compromised WordPress sites and other disposable hosting, suggesting an attempt to distribute malicious content or phish users. The document's structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://precedent.by/_newsite/images_from_html_editor/file/zemulekeruxowugulem.pdf
- http://northcity.rs/slike/files/vutusinugu.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/863d9da955967718e3e5416ca014412f/4572377412.pdf
- http://adainst.com/uploade/files/20210626092145.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6ba208124---68745914242.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16073670486c20---92455659098.pdf
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/85cde45525d8324fa5b11b8d7649f4b5/83519462468.pdf
- https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f1f0cb4bc---77356135514.pdf
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070fb104538f---9898458592.pdf
- https://aimtronu.org/userfiles/file/49306822745.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c62a7e860f9---59141097520.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfae555b14e---6093597583.pdf
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/705580830.pdf
- http://mmdplus.com/userfiles/files/20210608_092850.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f93108e64---jepuduzisumogurotaridan.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/6762fdef74ff74c88aedb25bd521f5ab/98303256026.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/cs7iqb5l3d7ld8io5psrvpnd3j/58532818891.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609aae50922eb---43462887881.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080764ac2fa1---matan.pdf
- https://m-isc.com/userfiles/file/liwinapigufasa.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078af2b46cd8---lufoderogikefizuvekegep.pdf
- http://thaimassagemodel.com/ckfinder/userfiles/files/raxokopolikinitoja.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+download+messenger+apk
- 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_off0000f44c.bine7863bc0384732eb7203d86fa29b98ef3b17844b051af2b1a0062957cd3ea734 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44C | 10812 bytes |
font_01_sfnt_off00010d0c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0C | 16792 bytes |
font_02_sfnt_off0001251e.bin4f3ac3ec262a765546fc6d9c4ed48a05088c8b0803299c7b5bb4f2e5fd8dd9de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1251E | 16632 bytes |
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