MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URLs, many of which are hosted on compromised or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://ketchas.ru/uplcv?utm_term=how+to+change+phone+language+android PDF link annotation
- http://fruitvita.com/files/files/nurogulebuzaw.pdfIn PDF document text
- http://dongsimkindergarten.com/upload/files/42593332712.pdfIn PDF document text
- https://robert-zauer.cz/userfiles/file/vivopurinopadadovak.pdfIn PDF document text
- https://goooinggroup.com/userfiles/files/20210902_210956.pdfIn PDF document text
- http://abwwilson.com/uploads/files/92445593380.pdfIn PDF document text
- http://intersonik.eu/upload/files/kaserexi.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/d64d6f3cb73fddbcedc6039396e21a54/nejetuwuwavegewife.pdfIn PDF document text
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/ratuvozalezikuxidip.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161399071317ab---xufasusorevug.pdfIn PDF document text
- http://ibookingkr.com/FileData/ckfinder/files/20210911_12FF1F5228A2AFFC.pdfIn PDF document text
- http://mackyz7automotive.com/js/upload/files/17610057863.pdfIn PDF document text
- https://moolans.com/uploads/files/39750952587.pdfIn PDF document text
- http://thietbiantoanttk.com/uploads/files/dapitapabigebiluna.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca2362f16e---velixuzaxarenesegefazav.pdfIn PDF document text
- https://full-flavors.com/img/Data/file/84113908743.pdfIn PDF document text
- https://optical-axis.com/uploads/files/202109081711222620.pdfIn PDF document text
- http://ibarugi.com/fckeditor/userfiles/file/39490201782.pdfIn PDF document text
- http://fszhenjia.com/upfolder/e/files/20210909140417.pdfIn PDF document text
- http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/7117447804.pdfIn PDF document text
- https://hinodanang.com/uploads/image/files/tesugekitid.pdfIn PDF document text
- http://apvn.info/userfiles/file/28394853856.pdfIn PDF document text
- http://zovsh.com/Uploadfiles/files/golekimomukutugazar.pdfIn PDF document text
- http://legalinet.eu/userfiles/files/mawefimuja.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_off0000ebfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFB | 17412 bytes |
SHA-256: 076fc8a7766e4018d61212f2acffaa28eae965bd065ee92310712a2d5bb1fef7 |
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font_01_sfnt_off000119e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000131fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131FC | 10804 bytes |
SHA-256: 71514efe36f9755bfeee908cd63bd7cf72a99c277b623ed15d445c071997476b |
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