MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many of which point to compromised CMS upload storage or disposable hosting, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://mysilo.com/upload/ckfinder/files/78355420454.pdf
- http://giteduguedesboires.com/userfiles/file/93552204114.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/d8b29b285d491aeecb19cf0907f6c177/72304309896.pdf
- http://car-zone.sk/data/data/file/romumunusokonem.pdf
- http://aolisenjiancai.com/data/files/xizulesodozitalizaxedabi.pdf
- https://livermore.com/wysiwygfiles/file/35409763156.pdf
- http://cs-web-design.de/ablage/userfiles/files/93221729361.pdf
- http://deepakbatteries.com/uploads/file/wetuzenatimoruxisoxatizuv.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/e0ec2a72d1aae9b404ce438e8bc1b1c8/wodonotokokepog.pdf
- http://ppfi-online.com/userfiles/file/xorikiramoxetewezigo.pdf
- http://stattus.com/assets/file/xatamubibimiwedexoj.pdf
- http://meubelenindex.nl/images/uploads/najiwoxamuxuzulititugux.pdf
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/papebekola.pdf
- https://trainova.com/userfiles/file/vuwita.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356ce844cd6---43126104971.pdf
- http://cieplej.pl/imgturysta/file/jupogisek.pdf
- https://listocrm.com/userfiles/files/woviropezubit.pdf
- http://sinoscaform.com/upload/ckimg/files/202109160046555670.pdf
- http://life-worldwide.org/assets/uploads/files/xoxunapozirat.pdf
- http://hansungid.com/userfiles/file/19961945177.pdf
- https://anfauglir.com/images/file/siwuloxom.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d0ace04df1---juvonufijare.pdf
- http://amexeuro.com/an3_Uploads/file/wegolizorimonagufi.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614afe8b40806---62939252990.pdf
- http://patrickstaxi.fr/userfiles/file/6905346245.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=where+can+i+watch+walk+the+line
- 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_off0000f2f9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2F9 | 16792 bytes |
font_01_sfnt_off00010b0b.binc15846b758d83cba478a895fabac5e92a45d69a186f0c5f51c17e035ca788dcf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B0B | 18564 bytes |
font_02_sfnt_off00013aa0.bincf0e455908fc7b22774280d1374e3b1e9d13694ab02104cc88364284b87d5cc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AA0 | 10212 bytes |
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