MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm on disposable hosting. The heuristic 'SE_CALLBACK_LURE' strongly indicates a callback phishing or tech-support scam, where the user is prompted to call a number. The ML classifier and ClamAV detection further support the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=galaxy+watch+navigation+app PDF link annotation
- http://ctcinsulator.com/uploads/file/piguwukaxutitoforax.pdfIn PDF document text
- http://iglozawiercie.pl/zdjecia/file/59130262404.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/46843754309.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/bularoxesanuzide.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/404f179153d9ccc79302a8142ebdcf97/42644493130.pdfIn PDF document text
- http://villapellegrino.it/userfiles/files/duwowireleze.pdfIn PDF document text
- https://escolaalfa.com/userfiles/file/94375425522.pdfIn PDF document text
- http://hoangminhsaigon.vn/@dmin/js/ckfinder/userfiles/files/80601029713.pdfIn PDF document text
- http://stroi-sistema.ru/img/fulepipedofufodutozid.pdfIn PDF document text
- https://livredart.com/ckfinder/userfiles/files/91448106670.pdfIn PDF document text
- http://zzquansu.cn/d/files/34428343560.pdfIn PDF document text
- http://copingconversations.com/userfiles/file/79699067334.pdfIn PDF document text
- http://www.agenbenangbandung.net/file/bafowosebib.pdfIn PDF document text
- https://ceccarmaramures.ro/userfiles/file/24795675314.pdfIn PDF document text
- http://rabotatver.ru/userfiles/admin/lefujazosofimome.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1614370aedc4da---getamemugitanebenakemu.pdfIn PDF document text
- https://successalpha.team/upload/files/19271523936.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613267b62f75e---vuremojalixotukav.pdfIn PDF document text
- http://monarchiaerembolt.hu/tmp/zeteniborubizuxavotovo.pdfIn PDF document text
- http://we2meeting.com/ckfinder/userfiles/publics/files/37889270971.pdfIn PDF document text
- https://imagebeaute.fr/userfiles/file/45152668952.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134f5000e8d7---82757036252.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/36513444430.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_off0000d10b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD10B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e91d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE91D | 18084 bytes |
SHA-256: bdeee3f8032d6e61739fc2aca718f1553912aecaec10b22ee435a54bbbf6ea09 |
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font_02_sfnt_off00011819.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11819 | 10660 bytes |
SHA-256: 5e578dc04a5a1dc591b670b5c6dfaa032db844564405ee73a3ae4939161c9baa |
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