MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous URLs pointing to compromised CMS upload directories, likely serving as a distribution point for further malicious content. The presence of multiple external URIs and link farms suggests an attempt to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/d45648c4010579673c322537230dbfca/50621974268.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a8673ccd82a---82716133684.pdf
- http://sosnovgeo.ru/userfiles/file/51644631755.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/p0858n41ic4ll2mpc4r011vr7t/44865874774.pdf
- http://maility.pl_adresuserfiles/file/wolemuxo.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607c425580e39---nivojemavizodi.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/6627593e71b42f9d45f5905b0168a158/90597949094.pdf
- http://eksan-ltd.com/userfiles/file/82952240228.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd28b233bf---xatimodugevirezetog.pdf
- http://sghscsjamarai.org/guruhargobind/userfiles/file/bisunovokejuzugom.pdf
- http://timandlor.com/userfiles/file/87451071672.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/o6thiv6n0h2ft9cj48g6i26mtg/witekigesidavureliwimodux.pdf
- http://rcp-ranstadt.us/files/56531128288.pdf
- https://kham.vn/userfiles/file/2367825626.pdf
- https://ceral.pl/ceral/pliki/file/duxuwijodi.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607050189d026---ditixola.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/25febe3eee5ca5aca16144d77e9c21ed/jawabaloxu.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d65a5f904b2---vukanusavojab.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/c7fc97872070b247e1b139b666e90f77/14985099640.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/6receiicug8b13d3oi01caluce/mozimus.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/ce9915180d8cb8291f84b3a92e164d40/54422817683.pdf
- http://logo4you.dk/userfiles/file/74684425465.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=data+structures+and+algorithm+analysis+in+c%2B%2B+pdf
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010170.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10170 | 16792 bytes |
font_01_sfnt_off0001197e.bin2a6540efb6c2de9898289775d01a5b93c58a43cc39bb13871a185674c7f30e4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1197E | 10624 bytes |
font_02_sfnt_off00013abb.bin16a843924cbd9c2fdb2c2874eaa5bd73d8812c815c938b8cf9d17fde7aab3846 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13ABB | 11280 bytes |
font_03_sfnt_off000154d6.bin673ba68cd3937e7825e5873cc715993cb415346bc3930818e96479ee6af8203b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154D6 | 16456 bytes |
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