MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a link farm intended for malicious purposes, likely SEO manipulation or hosting further malware. The ML classifier and ClamAV detection confirm the malicious nature of the file.
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://irlanc.ru/uplcv?utm_term=asa+di+vaar+path+in+punjabi+pdf PDF link annotation
- http://straps.by/ckfinder/userfiles/files/31987694147.pdfIn PDF document text
- https://www.gpaci.org.br/cms/ckfinder/userfiles/files/mobekebabepiz.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/nikonisased.pdfIn PDF document text
- https://newfrio.com/userfiles/files/46865479421.pdfIn PDF document text
- https://rentcar888.com/uploads/files/202109030610025362.pdfIn PDF document text
- https://xn--b8qxb801j.tw/upload/files/werilasa.pdfIn PDF document text
- http://melabo.com/upload/files/33914427440.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/8d8q9ivbu52cn7temudckmgkcb/82828071918.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161314cc0dbec9---rivisa.pdfIn PDF document text
- http://tuning-zone.eu/userfiles/file/50716997170.pdfIn PDF document text
- https://perfecthospital.org/FCKeditor/file/430543236.pdfIn PDF document text
- http://tlxzkj.com/uploads/file/120114023175.pdfIn PDF document text
- http://geofer.eu/userfiles/files/57868884279.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed67def96e---gipepejuwavufevafor.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/161386e88ee60f---60666586878.pdfIn PDF document text
- https://nileagriculturalindustries.com/file/sorofuvupefo.pdfIn PDF document text
- http://apsara.ru/userfiles/file/86746881202.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/78912499389.pdfIn PDF document text
- https://bleikss.com/userfiles/file/76588550962.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/27541162592.pdfIn PDF document text
- http://lexus-custom.com/js/upload/files/juneval.pdfIn PDF document text
- https://rajakedua.com/contents/files/41689559179.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_off00012e51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E51 | 19308 bytes |
SHA-256: d2c9fa7ad5174101ada73b2044804c48440aaadc10edfb1f2bd34e0db11cc554 |
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font_01_sfnt_off00016064.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16064 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001787b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1787B | 10712 bytes |
SHA-256: 33c71d452b022f778fe9d185ba13d603c9ac2cdfb2afca5bbc39a9b0e294c0cc |
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