MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, with a high ML classifier score and ClamAV detection indicating malicious intent. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam pattern, where the user is prompted to call a phone number. While no specific phone number was extracted, the presence of JavaScript and numerous links points to a malicious document designed to deceive the user.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://cuspsurgeons.com/userfiles/file/subikejijeru.pdf In PDF document text
- http://furniture83.com/upload/files/51593862208.pdfIn PDF document text
- http://unibox.lv/files/text/vemilitugowuxax.pdfIn PDF document text
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/128520dcb323ea21a7d9d6c61242f955/89064573568.pdfIn PDF document text
- http://amindoost.ir/images/upload/files/sivofozazagezoja.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/mamudabo.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/57876968326.pdfIn PDF document text
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/21122630250.pdfIn PDF document text
- http://dh-cell.com/ckfinder/userfiles/files/vajiga.pdfIn PDF document text
- https://concurs-euclid.ro/upload/fck/nuzuwudanuwezu.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021090602163473499.pdfIn PDF document text
- https://vyaspublicschool.com/ckfinder/userfiles/files/16280642715.pdfIn PDF document text
- http://hiace-yoshikawa.com/js/upload/files/42355512042.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/rojoxupepu.pdfIn PDF document text
- http://streathamtaxi.com/survey/userfiles/files/fefukigosifawikase.pdfIn PDF document text
- http://maremio.ru/admin/ckfinder/userfiles/files/fusoxibene.pdfIn PDF document text
- https://hiperaktivite.info/userfiles/files/918344168.pdfIn PDF document text
- http://kusistoconstruction.com/userfiles/file/bogekixodubuzodu.pdfIn PDF document text
- https://lajovisena.com/gallery/file/31447501653.pdfIn PDF document text
- https://fceresources.com/ckfinder/userfiles/files/81622816105.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1613873e8e685f---31500596624.pdfIn PDF document text
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mizakiwenofarivax.pdfIn PDF document text
- http://mecateengenharia.com.br/ckfinder/userfiles/files/74949282988.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=the+pillowman+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_off0000ffdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFDF | 20328 bytes |
SHA-256: bed4e3c4633aa7c1a49d4212d03cb86eac342cadabe252b415717689bfee6362 |
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font_01_sfnt_off00013555.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13555 | 10444 bytes |
SHA-256: 5eb4e9e5e14c8c7608ef192a43473605514e1abd5898c696f01b4cf1061df9f7 |
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font_02_sfnt_off00014cd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CD2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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