MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of multiple external URIs and link farms suggests an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://infrive.ru/uplcv?utm_term=fixed+stock+for+carbine+buffer+tube
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/65d489c0983853e67bfe99ecef88b46a/medukutopagetiberirumevo.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/c36cb639a641ba444bf4c2774065440a/rijetofulapabusigus.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec50caa7c8---54002252188.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9280405ed---giruzedefukegezazomuvuki.pdf
- http://dambi.pl/userfiles/file/gusiraletewibufelo.pdf
- https://stopserv.ru/files/file/biwonexobixoz.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/46af446a872f21177445c0e181cdb2d5/gidejigozimexirajuvu.pdf
- http://fitviewer.biz/files/file/19036533685.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f005ea6eea---fuxoketadebuboxafole.pdf
- http://cementfeet.com/userfiles/file/pepixogofukerupakazuzozaz.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160811fad5d3c5---posopurutiziwuzap.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16082cd7ac18bf---6108824947.pdf
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/7ec7758462a5e1d63f8929f749687ebd/razesikarefugodifi.pdf
- http://adamlegal.com/userfiles/file/vamisavubuluv.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607b69fc8ea53---riritomatixurofijexifowa.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ddb872e326---13860695210.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/1ml3fh884u1lckjdn03o9q66bi/tajapidebasijibo.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/a1ea39a678f57042613b49c5cbb21ed3/kegarules.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af552952c60---68590158308.pdf
- http://chunmianxian.com/upfolder/e/files/20210626204627.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c351.bineacd197a080f2e461c67f86b0fd46015fd85625a187f53d2f361481dbcb96940 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC351 | 16532 bytes |
font_01_sfnt_off0000ee60.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE60 | 16792 bytes |
font_02_sfnt_off00010677.bin10e5d33b4b7e20cdf84b1da21206b90917c129b713538a5b3123899c8232a74b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10677 | 10836 bytes |
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