MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://synerhu.ru/uplcv?utm_term=cringiest+pick+up+lines+ever PDF link annotation
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d158a1a637---29210842744.pdfIn PDF document text
- http://virus-safe-zone.com/ckupload/files/14106796232.pdfIn PDF document text
- https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/masupi.pdfIn PDF document text
- http://fcraregistration.com/UploadedData/file/12951325955.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/48500142117.pdfIn PDF document text
- https://growyourmoney.in/userfiles/files/87223786716.pdfIn PDF document text
- http://k-ookuma.com/js/upload/files/teluzizurifalizepav.pdfIn PDF document text
- http://shriramashramps.org/userfiles/file/pexaniboxok.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/86cef42456482cbed4152b32adcac39d/62645633838.pdfIn PDF document text
- https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/34118448124.pdfIn PDF document text
- http://wildzipper.com/clients/wildzipper/userfiles/file/59502311129.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/903e06c3f5081ab40e5a30f31c4434a2/12812789588.pdfIn PDF document text
- http://rymwid-training.com/userfiles/file/99456618385.pdfIn PDF document text
- http://kingsfci.com/userfiles/file/96313080653.pdfIn PDF document text
- https://stayinbranson.com/ckfinder/triplebuserfiles/file/nuzupugupadubefof.pdfIn PDF document text
- https://lean-ds.com/upload/editor/file/48445903125.pdfIn PDF document text
- http://gordostcrista.ru/userfiles/file/38180968873.pdfIn PDF document text
- http://vistobrasil.net/uploads/file/dofejawozofi.pdfIn PDF document text
- https://ysh.my/userfiles/file/97045626547.pdfIn PDF document text
- http://stonestudio.pl/files/upload/file/kozimusir.pdfIn PDF document text
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/99091987721.pdfIn PDF document text
- http://grupophi.es/uploads/files/2501109964.pdfIn PDF document text
- https://unibel.pl/pliki/upload/file/66880221986.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_off0000cb17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB17 | 17608 bytes |
SHA-256: 51444d5a4c9e0b4e811e4ad9e370924e088b60d815248a4949fb376a02ce9539 |
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font_01_sfnt_off0000f885.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF885 | 10556 bytes |
SHA-256: ed303efb660508e0f241cc8de4440f336786198fe4167f120ca728fad306f06f |
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font_02_sfnt_off000110be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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