MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories or are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware hosting sites. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://oniceh.ru/uplcv?utm_term=watch+the+bachelor+2020+online+free PDF link annotation
- http://cdseoulps.com/uploadfile/fckeditor/file/saxizinafogakeseluloteg.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/tumuserizemurev.pdfIn PDF document text
- https://forumsevens.com/images/file/26011412124.pdfIn PDF document text
- http://hiace-yoshikawa.com/js/upload/files/85554705960.pdfIn PDF document text
- https://www.jaegeraviation.com/ckfinder/userfiles/files/gamogemix.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f33157a180---jopafoj.pdfIn PDF document text
- https://redengewinnt.com/userfiles/file/1957694648.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/4h6ri2al83ipgb8hhhjc2godck/45049967333.pdfIn PDF document text
- https://auditorescr.com/ckfinder/userfiles/files/xuzajometobekizuzifo.pdfIn PDF document text
- https://igruppe.no/ckfinder/userfiles/files/1462420810.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/fuzapamadawukuwawitabisap.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161386632691c8---ziwasekawamifarite.pdfIn PDF document text
- https://geloracinta.com/contents/files/gitivajedenipazugogobadam.pdfIn PDF document text
- https://buyafranchise.org/files/files/59194172779.pdfIn PDF document text
- http://pacemakerpressintl.com/uploads/assets/file/25292293060.pdfIn PDF document text
- http://niktid.ru/userfiles/file/jirawadivelolubevasemi.pdfIn PDF document text
- https://rossbeede.com/userfiles/file/pajar.pdfIn PDF document text
- http://gerd-pollak.de/userfiles/file/31341551250.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/54879289921.pdfIn PDF document text
- https://akapacha.com/userfiles/file/jujonupisuvukuxopuxaza.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/0cfcaebe0d7e24fc1b845b57aea02060/penaravivijimulexuwifusiw.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613d267d234e0---pobopamamanetaxal.pdfIn PDF document text
- http://phutungquanghieu.com/app/webroot/files/ckfinder/files/60447076988.pdfIn PDF document text
- http://prime42.ru/userfiles/files/40190687221.pdfIn PDF document text
- http://liqaa-lb.com/files/userfiles/files/zitusomiju.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad471c0eed---56287157346.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_off0000c1ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1EA | 16372 bytes |
SHA-256: 6f49a331b76c00b5d419a76a725a40651e082a50ab3b83df9a6e0f7a2e4e701b |
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font_01_sfnt_off0000ebf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001040a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1040A | 10640 bytes |
SHA-256: cac71212584da2dcee867af7260d9c591a8423b36df97dc7ac0d10628bfa40e6 |
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