MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and numerous external URLs, many of which point to disposable domains hosting other PDF files. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam context. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to facilitate further compromise through downloaded payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://drafthe.ru/uplcv?utm_term=worksheet+finding+the+probability+of+an+event+ii+answer+key PDF link annotation
- http://resortcrimea.com/ckfinder/userfiles/files/piforasafugit.pdfIn PDF document text
- https://flyags.com/editorResources/file///34754441872.pdfIn PDF document text
- http://bushurov.ru/images/files/vades.pdfIn PDF document text
- http://kimwendelldesign.com/ckfinder/userfiles/files/fakavusumajadizikized.pdfIn PDF document text
- http://www.moyekolodin.com/files/ginerifafuz.pdfIn PDF document text
- https://purevdavaa.mn/uploads/ckfinder/files/lizomipirafebamufepiv.pdfIn PDF document text
- http://softtox.pl/new/userfiles/file/pavalenarufikiwora.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/fbde6e1b864913a11858e5334e0efe18/pepofalaxeje.pdfIn PDF document text
- http://seoulsquare.com/userfiles/file/35969621999.pdfIn PDF document text
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/17965252765.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/wonatezutos.pdfIn PDF document text
- https://keiba-like.biz/js/ckfinder/userfiles/files/2295761794.pdfIn PDF document text
- http://geoplan.su/userfiles/file/fixaxarenaguripo.pdfIn PDF document text
- http://beta-rc.com/upload/files/fifux.pdfIn PDF document text
- http://topup-fight.com/ckfinder/userfiles/files/54733778777.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/bosepufavifem.pdfIn PDF document text
- http://www.ufolep-69.com/contenus/files/modazulopomawakati.pdfIn PDF document text
- http://vtaky.sk/media/file/weririguduge.pdfIn PDF document text
- https://breedlife.com/upload/files/sagulibisom.pdfIn PDF document text
- http://stnicholasway.com/userfiles/file/bopux.pdfIn PDF document text
- http://ateliergermain.club/sites/default/files/file/kukegibedan.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c4d358e6f---bikavilanenovenezuveto.pdfIn PDF document text
- http://centrlita.ru/archive/image/file/sabojoloborujupuki.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_off0000daab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAAB | 18928 bytes |
SHA-256: 713eefd1a02d58e777b4d0855cdf2eb04679d4fc474f50def9679dc3b4807124 |
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font_01_sfnt_off00010c53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001246a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1246A | 11268 bytes |
SHA-256: 9bf125fc1260f36d269aa03b0bd326f4d8265374972d87a88da7131ca29502b1 |
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