MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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://smidgel.ru/uplcv?utm_term=the+concept+of+anxiety+soren+kierkegaard+pdf PDF link annotation
- https://griby.biz/ckfinder/userfiles/files/89286191314.pdfIn PDF document text
- http://hfengly.dk/skoleportalen/userfiles/file/57085653290.pdfIn PDF document text
- https://dycmc.com/DATA/upload/files/202109050207301366.pdfIn PDF document text
- https://betentour.com/sites/default/files/file/wuvivadakonufugenewuni.pdfIn PDF document text
- https://barrier.exma.cl/ckfinder/userfiles/files/zuxusoxunisuvup.pdfIn PDF document text
- http://boek.se/bilder_umeny/File/vumad.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/84518421852.pdfIn PDF document text
- http://regalmotors-jp.com/js/upload/files/busotikevevaraxaxi.pdfIn PDF document text
- http://studiospazioambiente.it/userfiles/files/likejezaludomuxod.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613a47cfa9fb2---32587071489.pdfIn PDF document text
- http://nt-module.ru/ckfinder/userfiles/files/45285812215.pdfIn PDF document text
- http://debeleven.net/UserFiles/File/nokul.pdfIn PDF document text
- https://onutglen.com/caningest/images/file/65852631685.pdfIn PDF document text
- https://seedomoretravel.com/files/files/36943624909.pdfIn PDF document text
- https://quangcaowebsite.vn/uploads/files/bubumadiritemilenezifas.pdfIn PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16132a6545b0b5---51897237595.pdfIn PDF document text
- https://grandiosieventinuziali.it/filesUploads/file/timekazedizamuderinikeje.pdfIn PDF document text
- http://1carl.com/userfiles/file/vebazusenamuxe.pdfIn PDF document text
- http://hongdacable.com/d/files/91487932244.pdfIn PDF document text
- http://cmsrecuperocrediti.it/images/file/37320008131.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/62704334920.pdfIn PDF document text
- https://egokituz.org/files/galeria/files/89236546852.pdfIn PDF document text
- https://bawauang.com/contents/files/nidekoxirimoviminejamexij.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/33723951287.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_off0001969d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1969D | 19960 bytes |
SHA-256: d6f816dd9d7a2bc95ecad026d5d56e549d1a2e6946fe80afc9f35cfb54f64a4d |
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font_01_sfnt_off0001ca88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CA88 | 11124 bytes |
SHA-256: cb507cc1f89de8c87ab83e91cc1a502eeb75c30edfeae24fb4e1c6d340c74f01 |
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font_02_sfnt_off0001e456.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E456 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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