MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a high number of external links, many pointing to compromised CMS upload directories, suggesting an attempt to host malicious content. The ClamAV detection and ML classifier further indicate malicious intent, likely for phishing or malware delivery. The embedded JavaScript is likely used to facilitate the redirection or download of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9362
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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=testbook+monthly+current+affairs+pdf+october+2020 PDF link annotation
- http://crocepadrekolbe.it/userfiles/files/jetolevoji.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16093d0f5708e8---fukovifarapizumaxirodejo.pdfIn PDF document text
- http://sk-massimo.com/js/upload/files/33822713235.pdfIn PDF document text
- http://adamshs-pdx.com/clients/d/d3/d3c120c733f7363e2cdaef2cff5f3687/File/84436238959.pdfIn PDF document text
- https://braus.uz/images/shared/file/61996509290.pdfIn PDF document text
- http://chargers68-50th.com/clients/3/3d/3dd154274af4887fbe356f6dcfc18689/File/96059701119.pdfIn PDF document text
- https://koncnc.com/genelresimler/file/60208791533.pdfIn PDF document text
- https://olivierdaulte.com/ckfinder/userfiles/files/17324425927.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/hlosi1bhknroc51v5bjcoiru70/85169112031.pdfIn PDF document text
- https://thefertilizerequipment.com/d/files/sijipijazelewomuze.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9919e6995---juteboxijonavesewe.pdfIn PDF document text
- http://synowka.pl/galeria/file/9090126950.pdfIn PDF document text
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609885e026d31---nipojixuve.pdfIn PDF document text
- https://santchavarabed.in/ckfinder/userfiles/files/samajiriboga.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8e2585e472---83745361239.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/cu6urn1pbrh510957ilkdovbhd/60079101425.pdfIn PDF document text
- http://cesishotel.lv/res/wysiwyg/file/sakanumusiwikideser.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/khv1sl26hj56vk5m3p9psu6trm/2622865991.pdfIn PDF document text
- https://www.ksmt.edu.np/assets/ckfinder/userfiles/files/40554525240.pdfIn PDF document text
- http://telekommarketing.com/firme_data/files/mibiwavoletabulis.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6c8ec272b---65616271525.pdfIn PDF document text
- http://feldbach-tourismus.at/files/37368845230.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0189e9c510---17044817141.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12685 | 11536 bytes |
SHA-256: fbd135ac68d228ea5b4873d0b88c15718576b0ce40de03005eae2bec40d42200 |
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