MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lure users to potentially malicious destinations. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this phishing or distribution vector. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=android+signal+messenger PDF link annotation
- https://mgs-on-track.com/uploads/misc/files/vedexawusudadoke.pdfIn PDF document text
- http://duocmyphamcongty.com/app/webroot/uploads/files/nazeramixelekulokad.pdfIn PDF document text
- https://vibanghanoi.com/uploads/files/27585418689.pdfIn PDF document text
- https://siemreaptraveltours.com/userfiles/file/gixeje.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161471dab750b3---paxixebataro.pdfIn PDF document text
- http://targhevaticane.it/userfiles/files/40577368463.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16138ce1839d0d---80529511775.pdfIn PDF document text
- https://digireg.es/upload/30072422799.pdfIn PDF document text
- http://abwrichmond.com/uploads/files/96796163674.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/6c6bfe8a67c33efcf5c67ef031593cdf/76356903342.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/b52093b6f80167e4d5ffeaa5c98e348c/27543794473.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/32092504035.pdfIn PDF document text
- https://pass-eco-energies.com/ckfinder/userfiles/files/losufisebuvemi.pdfIn PDF document text
- http://ausafe.net/images/art/files/lategidosarejavupijugun.pdfIn PDF document text
- http://toitureetfacade.fr/data/Files/nulovolijuta.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16140d83fb55e2---xetoparewuxodibamiguto.pdfIn PDF document text
- http://vino-charlie.cz/userfiles/file/pedotutisegol.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/4ca2a0ec3f58ba83bc78ca18f927cc7e/durupuk.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/kamimisarolurekezeb.pdfIn PDF document text
- http://lionsmarsala.it/userfiles/files/74818864837.pdfIn PDF document text
- http://bkht.vn/userfiles/file/60643046872.pdfIn PDF document text
- http://rs-entp.com/upload/file/55565203973.pdfIn PDF document text
- https://elesud.it/img_pagine/file/12035141883.pdfIn PDF document text
- http://orlickachata.cz/files/files/jeluzagugikewurela.pdfIn PDF document text
- http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/lulixi.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_off0000e434.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE434 | 17792 bytes |
SHA-256: fde6f0ea67dcab30dafc574221f361efcbd082221721b54bd4796911eb4945bd |
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font_01_sfnt_off00011200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11200 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A17 | 10476 bytes |
SHA-256: f949fd47dd1dc8b358abdff6d0fd042e679c8dc861fc43a774901526e52b39d6 |
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