MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised websites or disposable hosting. These links are presented in a way that suggests a lure, such as a fake software update, to trick the user into downloading further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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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://irlanc.ru/uplcv?utm_term=update+windows+10+1909+to+20h2 PDF link annotation
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e20e591743---bezizujiropo.pdfIn PDF document text
- https://shreegroupco.com/userfiles/file/83598776172.pdfIn PDF document text
- http://canphantich.net/Images_upload/files/molizu.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/f926fa4544b94e4bb3048fb7b855ea9d/norumozagew.pdfIn PDF document text
- http://geostudio.eu/userfiles/files/82801869820.pdfIn PDF document text
- http://melodylavernebettencourt.com/media/file/7376538371.pdfIn PDF document text
- http://ratchadatitan.com/UserFiles/File/torasodirus.pdfIn PDF document text
- http://purofirstli.net/userfiles/file/jowajik.pdfIn PDF document text
- http://aydinservis.com/ckfinder/userfiles/files/waxevugid.pdfIn PDF document text
- http://rapabzenec.cz/obrazky/files/ponivujefonamerisoka.pdfIn PDF document text
- http://hueide.com/upload/files/vogaxuruzuta.pdfIn PDF document text
- http://tetrafluoro.com/upload/files/bolidugalowunegus.pdfIn PDF document text
- http://lica.plovdivweek.com/js/ckfinder/userfiles/files/13184892058.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/2987476792.pdfIn PDF document text
- https://ever-progress.com/upload/files/65390967775.pdfIn PDF document text
- http://sacoorhealth.pt/site/upload/file/62695359552.pdfIn PDF document text
- https://canevastoilestjean.com/upload/editor/file/ronopovuxirugubetedajava.pdfIn PDF document text
- http://sungder.com/upload/44235799785.pdfIn PDF document text
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/cb9eb1d2299fb07f376b435272f4304a/bupilewituzozasakodarone.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_off0000d8be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BE | 18104 bytes |
SHA-256: af24a61a3153916e375d07a38f1e91ab8806b5e50e835725eb64690596924312 |
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font_01_sfnt_off00010777.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10777 | 10900 bytes |
SHA-256: 48f2b9ffac444eab298e5ca571f41c02be3b1f71f6dc429ac24cf0f498430fd0 |
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font_02_sfnt_off000120ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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