MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier with high confidence. It contains embedded JavaScript and a link farm pointing to compromised WordPress upload directories. These links likely serve as a lure to download additional malicious content or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://catamma.ru/uplcv?utm_term=three+most+populated+countries PDF link annotation
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/4u1k2sn8augs2sij3battibb30/tulurir.pdfIn PDF document text
- https://art4you.sk/editor_uploads/system/files/84470810543.pdfIn PDF document text
- https://corpus.bg/files/fck/file/27497462212.pdfIn PDF document text
- http://gptools.net/userfiles/file/57777973412.pdfIn PDF document text
- http://bud-med.eu/userfiles/file/22661790238.pdfIn PDF document text
- http://aryajob.com/user_upload/file/44364531859.pdfIn PDF document text
- http://sfipl.in/userfiles/file/pabedolujogev.pdfIn PDF document text
- http://kvarkeno56.ru/userfiles/file/36538170013.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614cbcaad656f---taposipev.pdfIn PDF document text
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/741805677.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/43607097750.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/e4de49da98ac78422ef6ba739c139b49/fopowox.pdfIn PDF document text
- http://aktasmatbaacilik.com/resimlerfiles/powakaratexaxedabizane.pdfIn PDF document text
- http://studiorinaldibedin.eu/userfiles/files/82423225279.pdfIn PDF document text
- http://mcserpenti.com/userfiles/file/talaxigozewanawek.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/sigasenopuloro.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2021-9-1/20210901143714549341.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/reruxudumazolelenajovu.pdfIn PDF document text
- http://devveb.net/userfiles/file/basikezanilorefozalozaz.pdfIn PDF document text
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/44841942323.pdfIn PDF document text
- https://smilaxlabs.com/userfiles/files/94692657466.pdfIn PDF document text
- https://anitt.in/ckfinder/userfiles/files/makagitabegiduniro.pdfIn PDF document text
- https://honghow.com/ckfinder/userfiles/files/nomebefosivibel.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b171.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB171 | 10844 bytes |
SHA-256: 4f52046a864fb867ddf971c9fb516a4e4330c51038fd4423554b492f942ff3e1 |
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font_01_sfnt_off0000ca46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA46 | 15280 bytes |
SHA-256: d9201484aca48a35a3c589556420ad27db5e65e1e870d29a06ce6db59d540535 |
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font_02_sfnt_off0000f100.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF100 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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