MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF sample was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URLs, many hosted on disposable domains and employing UTM parameters, suggests a phishing or link-farming operation. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically points to a large number of links on potentially untrusted hosting, reinforcing the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://synerhu.ru/uplcv?utm_term=how+to+configure+android+phone+for+browsing PDF link annotation
- http://quincy.pl/ckfinder/userfiles/files/19991218920.pdfIn PDF document text
- https://ap-qatar.com/userfiles/files/1327589343.pdfIn PDF document text
- https://vantainoidia.vn/ci/userfiles/files/vaposudedusibopurofukep.pdfIn PDF document text
- http://full814.com/upload/files/94700273734.pdfIn PDF document text
- https://mttrasportisrl.it/dati/upload/file/10823563331.pdfIn PDF document text
- http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/7812805614.pdfIn PDF document text
- https://er-cardiff.com/eurostyl/photos/file/47824643872.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/be4836c473f8855a6a94a9462be309a5/zikudekamimonowukimi.pdfIn PDF document text
- https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/podawuko.pdfIn PDF document text
- http://usateatop.com/_upload/files/wizagubif.pdfIn PDF document text
- https://vleek.com/uploads/files/14964288735.pdfIn PDF document text
- https://ebooksweb.net/files/file/reweboxulugi.pdfIn PDF document text
- https://europacreativaeuskadi.eu/files/galeria/files/56100786504.pdfIn PDF document text
- http://vitanova-cattery.com/upload/file/zoxidepawarabotuxilowonum.pdfIn PDF document text
- http://camberwelltaxi.com/survey/userfiles/files/78093681212.pdfIn PDF document text
- https://doanandieuduong295doson.vn/namthuan/images/news/files/rosor.pdfIn PDF document text
- http://poetische-malerei.de/web/editor/files/dekiwunogabobemeza.pdfIn PDF document text
- https://tessuno.com/upload/files/6142982b6ee8c.pdfIn PDF document text
- http://kaies.cn/upfiles/file/piloferulodamekufomifax.pdfIn PDF document text
- http://ministerium.pt/files/67493334091.pdfIn PDF document text
- http://alconsprom.ru/ckfinder/userfiles/files/13562290694.pdfIn PDF document text
- http://giftboxvietthuy.com/upload/ck/files/ramoridara.pdfIn PDF document text
- https://mldom.xyz/web/img/podborky/files/savelasipepipuwezexuvakaj.pdfIn PDF document text
- https://momsgardenfoods.com/ckfinder/userfiles/files/15020863049.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_off0000e602.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE602 | 17752 bytes |
SHA-256: 0b39fde01bab81e792336aa477efcd32013f9d1d0c78ea0fbaf161490779376f |
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font_01_sfnt_off0001144a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1144A | 11172 bytes |
SHA-256: 998305dcc016bf03495788b9646c0c1f682bd7e432206f24c84afb9ccdcb70e9 |
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font_02_sfnt_off00012df7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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