MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, with one heuristic specifically identifying it as a link farm on disposable hosting. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam pretext, aiming to trick the user into initiating contact. The ML classifier and ClamAV detection further support the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 http://sunway.me/ROOT_PATHuploads/file/061906482476.pdf In PDF document text
- http://primeasset.hu/fileok/file/70947168697.pdfIn PDF document text
- https://alkathirilaw.com/userfiles/files/werenidodamatumiwovokeva.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/tabute.pdfIn PDF document text
- http://usa-ex.com/images/blog/file/pizogerizerixikenojixov.pdfIn PDF document text
- http://siamintertrade.com/file_media/file_image/file/10171051677.pdfIn PDF document text
- http://inbjnews.com/data/cheditor/0603/files/92672388291.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/55590880425.pdfIn PDF document text
- http://daiichihr.com/uploads/news_file/roxetamam.pdfIn PDF document text
- http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/doxalululubujov.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20210908134458.pdfIn PDF document text
- http://thenikharvconsultancy.com/userfiles/file/kirowaxovividifuxu.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1613008dc1d9ab---busuzifibelobasulonij.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/14154077950.pdfIn PDF document text
- http://kurumakaitori-one.com/js/upload/files/53445029951.pdfIn PDF document text
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/nikuledobijekamodaf.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/mapewujunixe.pdfIn PDF document text
- https://fitness-sport.it/userfiles/file/sakifemapule.pdfIn PDF document text
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/48852306670.pdfIn PDF document text
- http://kor-ra.ru/UserFiles/file/pulozodakaba.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/c6f6746bedfebfa6b97ab483f4fc1ea2/ruxevotugesikujafi.pdfIn PDF document text
- https://hotlinepro.in/admin/userfiles/file/zozokavubagiluvim.pdfIn PDF document text
- https://bselink.com/userfiles/file/lezefaxorojewupifotogigig.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=introduction+to+electrodynamics+by+david+griffiths+pdfPDF link annotation
- 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_off0000d66c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66C | 11436 bytes |
SHA-256: 5ec546d5fbe12c9a4e85d8a5d631ac644d0fb6e2729d402ce13c444a31261683 |
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font_01_sfnt_off0000f0dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0DC | 19060 bytes |
SHA-256: 92ac2e770b5bcb33d0259ca013714a74ebcf10e32672b01ef3e1b6d4aad3adef |
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font_02_sfnt_off000122ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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