MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF exhibits characteristics of a phishing lure, including being image-heavy with a clickable action trigger and containing numerous external links. ClamAV detection and ML classification strongly indicate malicious intent. The presence of embedded URLs, such as https://chcial.ru/uplcv?utm_term=dictation+words+for+7th+class, suggests the document is intended to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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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://chcial.ru/uplcv?utm_term=dictation+words+for+7th+class PDF link annotation
- http://kezmosas.hu/files/file/30946524784.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/17364075102.pdfIn PDF document text
- http://synthecinter.com/userfiles/files/sewuvizuvotemutelon.pdfIn PDF document text
- http://rowerowaszkola.pl/imgturysta/files/wiwirikitexomawelir.pdfIn PDF document text
- http://dobrejaja.com/Upload/file/40753704674.pdfIn PDF document text
- https://hetodon.com/fckeditorfiles/file/toxutirok.pdfIn PDF document text
- http://restauraceeverest.cz/userfiles/file/53910510499.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a54f325418---34118613797.pdfIn PDF document text
- http://hla.vn/upload/files/suwinufuluxutirefuna.pdfIn PDF document text
- http://iseveranscopy.com/upload/editor/file/gojejaxaragib.pdfIn PDF document text
- http://phdpecs.hu/userfiles/files/15861287663.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/rslmrt85an9r1i6epf4mj573e1/32633092889.pdfIn PDF document text
- http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/ludimubola.pdfIn PDF document text
- https://svetplus.com/userfiles/files/galedumelu.pdfIn PDF document text
- https://speeddating.lt/speeddating/ckfinder/userfiles/files/robodekezapozad.pdfIn PDF document text
- http://circolosilverblufitnessclub.eu/userfiles/files/46631848830.pdfIn PDF document text
- http://hoanggiaphatland.com/uploads/image/files/71724840041.pdfIn PDF document text
- http://thaymanhinhlaptop.com/userfiles/file/40429762538.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/54847377896.pdfIn PDF document text
- http://dc-07b6a75bc4d0.breakthrough-physical-therapy.com/userfiles/files/35184472569.pdfIn PDF document text
- https://zhansq.cn/upload/file/51423766472.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/2358913553.pdfIn PDF document text
- http://primethailand.com/ckfinder/userfiles/files/nawedebinozukoxemafe.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_off0000b048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB048 | 10576 bytes |
SHA-256: 2f4691f1e6c05ea2364d8ed3848db96b5807bc42200361783affa86541c45631 |
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font_01_sfnt_off0000c87a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC87A | 13820 bytes |
SHA-256: 23ae1a98a6bdc681dd141ba21174043e04eca0239904de1c0d8b7267d61cc0d3 |
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font_02_sfnt_off0000eae3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAE3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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