MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9844
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://coretry.ru/uplcv?utm_term=alphabet+flash+cards+printable+black+and+white+pdf PDF link annotation
- http://ingfrimale.com/userfiles/files/39514520679.pdfIn PDF document text
- https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/xopagigenalod.pdfIn PDF document text
- http://decorstore.eu/upload/file/61429987601.pdfIn PDF document text
- https://livre-d-art.com/ckfinder/userfiles/files/kogamitenixoxoruvof.pdfIn PDF document text
- https://yomadesign.com/userfiles/Proj_Name/files/73773540020.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/55865694473.pdfIn PDF document text
- https://distriparkbotlek.nl/userfiles/files/vevek.pdfIn PDF document text
- https://ku4ysk-9lgp4y.com/contents/files/55674102821.pdfIn PDF document text
- http://baby-daycare.com/uploads/files/202109032019426478.pdfIn PDF document text
- https://fontan-montag.ru/img/upload/12202089750.pdfIn PDF document text
- http://guowangcable.com/d/files/10899663617.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/89714918250.pdfIn PDF document text
- http://cn-polylysine.com/d/files/sipipumuvitukepavevepufef.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613421578e2bf---zonewejavi.pdfIn PDF document text
- http://aczelzalog.hu/tmp/figajuz.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/tudipefibojunojarikina.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161316c98db9bc---80830629662.pdfIn PDF document text
- https://bimstudioinc.com/media/files/xurarovavusotudolitama.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090322134273499.pdfIn PDF document text
- http://homeloanz.net/images/e/file/16188132536.pdfIn PDF document text
- https://shopinhome.com/ci/userfiles/files/26400008667.pdfIn PDF document text
- http://clear-es.net/yamituki-n/uploads/files/50457540246.pdfIn PDF document text
- http://stavebnevyrobky.sk/www/upload/files/42607388469.pdfIn PDF document text
- https://igk-lilienthal.de/downloads/kirugajujana.pdfIn PDF document text
- http://carbonelite.ru/file/37910277716.pdfIn PDF document text
- https://marblo.marblobaths.ph/app/webroot/img/files/57263261847.pdfIn PDF document text
- http://mellorymotors.ru/admin/ckfinder/userfiles/files/78057963096.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_off0000cd63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD63 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e57a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE57A | 10896 bytes |
SHA-256: 487788465109e751f52f5a43aca340144f8013034a5ddc5b07d8a8e3f9ad88bf |
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font_02_sfnt_off0000fe7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE7D | 17484 bytes |
SHA-256: 43ad414dd9ba5e9e94f1ac364a255053dd9ff1ef99e8a22ae3d7b2a80cb4b457 |
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