MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://laclonghotel.vn/upload/files/84393794202.pdf In PDF document text
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a33eec12d8---razifatuwapija.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2092c4b9db935997df2f192ba436b87f/54298559497.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/penik.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/5321d60851def71fb4942874c510010c/vomimanapalo.pdfIn PDF document text
- https://istanajp2.com/contents//files/82748288264.pdfIn PDF document text
- https://vvpta-irvine.org/userfiles/file/37981384405.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/73db9b69d64e47202e697f32a05fd5b9/73987817107.pdfIn PDF document text
- https://1877painters.com/FCKeditor/file/zafiwenigituvoxokosenif.pdfIn PDF document text
- http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210803051121.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079304f42285---purad.pdfIn PDF document text
- http://canxetaianhduc.com/images/file/63769546701.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/m51ffk4j2hs8dcubojmid12f0k/61674270719.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/e64546414f3eb724df0c956accf271d7/40412895655.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/4b84958ca8573117b73c640d407c9aab/48353436610.pdfIn PDF document text
- https://beatmuellerfoto.ch/userfiles/files/kipenititivan.pdfIn PDF document text
- http://gndpta.eu/news_objects/files/40383473114.pdfIn PDF document text
- http://yer-krasnodar.ru/ckfinder/userfiles/files/4958971133.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/cijrvjskbguf1l0pev6t28f7uc/88921922054.pdfIn PDF document text
- http://www.tokyomagic.jp/images/library/File/vimikazipusulararufi.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/lekozutenaximudujepun.pdfIn PDF document text
- http://dhf-china.com/d/files/zavuwewogi.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b547af1a5ce---44959140341.pdfIn PDF document text
- http://kuresi-kaitori.com/upload/content_pic/files/19512360137.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=dc+legends+of+tomorrow+season+3+episodesPDF link annotation
- 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_off00017ddb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17DDB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000195ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x195ED | 18144 bytes |
SHA-256: 395d05d316353ccbe9859bbf9f3a5a56c3d2905146e9b6f2a1b180b6a26d3737 |
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font_02_sfnt_off0001c528.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C528 | 11224 bytes |
SHA-256: 5b91232199f1f056f46d68c1214f97e785d1e0c9bcb4ac5633cf3b93cae0dd48 |
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