MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous external links, many of which point to compromised WordPress upload directories or are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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.esfa.bg/root/ckfinder/userfiles/files/wepufitotepeluzepusoguxef.pdf
- https://tranduongauto.com/app/webroot/files/images/pages/files/bonupeluvisam.pdf
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca4f707bb4---tamabopulif.pdf
- https://successstudio.net/userfiles/file/kumivepidinevefulefuvow.pdf
- http://dienvietbac.com/uploads/files/34520568206.pdf
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/54618f24d625ca48b4061026ca69072e/79826765438.pdf
- http://parzenica-bialka.pl/userfiles/files/vulajipifug.pdf
- http://progettarecasa.com/userfiles/files/92281857081.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/9903hhau936sjpo8dqc82gatrf/82867623489.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/3erongerluopdkh4hsut243kp1/mukejuzudenidifalub.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3a1b9a15a---23706051059.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/mtfgk5gfphuvc10lt50bq08iph/sabotanolivekezizoji.pdf
- https://ivanda-commerce.hr/userfiles/file/63009661624.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e1cd15b35---nipogitoxigenuratako.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d93a9b22e5b---fipasimeluru.pdf
- http://sicilyontable.it/userfiles/files/derenolodel.pdf
- http://www.armstrongre.com/files/files/16970763943.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/ccshdtm1q7mvu9nl5bb0khvi89/liwib.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613174de8092d---39399625925.pdf
- http://nuraski.pl/wsg/userfiles/1854148626.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076667b0d6b8---fufoviw.pdf
- http://patp1ryb.ru/media/file/81740640829.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=prolotherapy+tmj+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_off0000cd30.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD30 | 16792 bytes |
font_01_sfnt_off0000e547.bin5a9debdb42a733753e4d36488814f4cb2325f25fcd414ac089f714daf47fff35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE547 | 10644 bytes |
font_02_sfnt_off0000fdb1.binfee1ebd189210652228fac039d0679a9d6e59edadc93ff3737eb7bc18ed490c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB1 | 17824 bytes |
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