MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. It contains numerous external URIs, including one pointing to 'chcial.ru', suggesting it is part of a link farm designed to redirect users to potentially malicious content. The PDF structure and embedded links indicate a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 5
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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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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=ml+hacker+apk PDF link annotation
- http://huseyindurmuslar.com/images_upload/files/66126302767.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/49647514362.pdfIn PDF document text
- http://influences-vegetales.eu/assets/Image/files/pugepamimonijozixaxa.pdfIn PDF document text
- http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///63300598976.pdfIn PDF document text
- https://www.piramideidiomas.com/ckfinder/userfiles/files/60147776373.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/3401545519.pdfIn PDF document text
- https://dobre-akce.cz/media/files/file/bisedonadirutekobamej.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137cb4264ded---tifepifi.pdfIn PDF document text
- https://easternresources.net/ckfinder/userfiles/files/pafenorinidurap.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/zexum.pdfIn PDF document text
- http://www.ujepites.hu/userfiles/files/nilorimonugijetasem.pdfIn PDF document text
- http://www.sm.ac.th/ckfinder/userfiles/files/85948145978.pdfIn PDF document text
- http://bk-plus.at/userfiles/files/8484628979.pdfIn PDF document text
- http://taxplus.in/images/contentimages/files/389787662.pdfIn PDF document text
- https://b7b.reviewz.eu/app/webroot/files/userfiles/files/dibiwawuxidurof.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/84019725373.pdfIn PDF document text
- http://infosierra.es/images/editor/ronuduvowudun.pdfIn PDF document text
- https://lordoptika.hu/files/files/40480693866.pdfIn PDF document text
- http://sial.pl/galeria/file/36433415128.pdfIn PDF document text
- http://cableesmaltado.com/d/files/buvejawivirif.pdfIn PDF document text
- http://lecieldesandes.fr/ckfinder/userfiles/files/zanogubi.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/reehgltn2fld2aq26albe5vlsc/mugudav.pdfIn PDF document text
- http://briquettemachinery.com/d/files/29507171060.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_off0000ad5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC574 | 9972 bytes |
SHA-256: 947621a812ca43b67bdad085d4d51c379506dd26b9062d5aee48c8fc0d39e322 |
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font_02_sfnt_off0000dbaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBAA | 15568 bytes |
SHA-256: 9f5d6eb37c98ccedac5384487558a8c31677954a3b91d899f34590eca79226fb |
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