MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be disposable or compromised hosting. Heuristics indicate this is a link farm, likely intended to distribute phishing content or malware. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://synerhu.ru/uplcv?utm_term=best+special+forces+in+the+world+ranking+2020 PDF link annotation
- http://biondiairsystem.it/userfiles/files/fanojotu.pdfIn PDF document text
- http://ashole.hu/UserFiles/File/23309996147.pdfIn PDF document text
- http://detskaoptika.cz/ckfinder/userfiles/files/16527647637.pdfIn PDF document text
- http://insei.eu/userfiles/files/94770088219.pdfIn PDF document text
- http://ciskmv.com/css/file/17163879817.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155b2bdccc39---gixumixenowo.pdfIn PDF document text
- https://alquimia.in/admin/fckeditor/editorfile/tipejeditepegodipavupov.pdfIn PDF document text
- https://zlato-eu.cz/upload/files/93284783969.pdfIn PDF document text
- https://noihoithanhtuan.com/media/ftp/file/dezaxotujamemuniga.pdfIn PDF document text
- https://jaukiaplinka.lt/ckfinder/userfiles/files/93594597202.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/dcefa39d4644d4b6a43dfeeb2cda7bf9/75737669876.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615368b20e2f5---vubozudevepugamosobetas.pdfIn PDF document text
- http://scsychem.com/upload/files/51507082662.pdfIn PDF document text
- https://moscreen.in/cmsfiles/file/xoluzozevomunusosexigatem.pdfIn PDF document text
- https://loyallcanada.com/editor_files/file/robodokopofodokam.pdfIn PDF document text
- http://cncsprings.com/d/files/wulizekozetasi.pdfIn PDF document text
- http://xn-----6kcftbqgtghjv5bf5gydg7b.xn--p1ai/files/files/16354393307.pdfIn PDF document text
- http://belly.bpv.su/content/files/files/retujuzulofuremiweter.pdfIn PDF document text
- https://proia.bg/userfiles/file/48190139602.pdfIn PDF document text
- http://panda-es.tokyo/yamituki-n/uploads/files/lisexaweg.pdfIn PDF document text
- https://asztromiskolc.hu/ckfinder/userfiles/files/sexakuxur.pdfIn PDF document text
- http://profitoolinfo.ru/ckfinder/userfiles/files/70294326645.pdfIn PDF document text
- http://highlevel.pl/userfiles/file/liwufazepub.pdfIn PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/6128703500.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_off0000af3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF3E | 15760 bytes |
SHA-256: 61e6b7d280d18b6f984148d26be24155095c6c078eeac583d51abe34ffce9cd8 |
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font_01_sfnt_off0000d6d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6D7 | 11372 bytes |
SHA-256: 118b039fe75171eba3629adb0c746b98c5ed7162d5a19e25a64324763ddf939a |
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font_02_sfnt_off0000f181.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF181 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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