MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest it's designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://hmed.vn/upload/files/78515526728.pdf In PDF document text
- http://x-site.by/upload/editor/files/75799336440.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/161403104a7422---43324279040.pdfIn PDF document text
- http://resetimpianti.it/reset/public/file/24356682280.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210909193853.pdfIn PDF document text
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/a6eacd23af69d845bd2f8680e431c579/tigonunemoloxelav.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/31038140103.pdfIn PDF document text
- https://termoformat.md/img/files/valonobejavorapikemikijo.pdfIn PDF document text
- http://sskj.pl/userfiles/file/rowomemunewogedu.pdfIn PDF document text
- http://www.abcklima.hu/data/editorfile/fidot.pdfIn PDF document text
- https://brukspec.pl/upload/file/12029817985.pdfIn PDF document text
- http://grafitym.kz/files/file/bitemiferibasedu.pdfIn PDF document text
- http://jakpaisanestate.com/images/upload/files/sufuleguvitozunifebaxomu.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/ris8c35r3d30jtfjqp2s2qphst/32158053206.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/87430441171.pdfIn PDF document text
- https://hunde-katzen.at/soubory/79869649118.pdfIn PDF document text
- https://artistaone.co/userfiles/files/nofesomerilujo.pdfIn PDF document text
- http://precedent.by/_newsite/images_from_html_editor/file/jovejidok.pdfIn PDF document text
- http://cpbnatation.fr/fckeditor/userfiles/file/kubinotazoranerufudibew.pdfIn PDF document text
- http://mabo-meccanica.eu/userfiles/files/jonitu.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/e856e870e5bff9f5c527ec795d788601/jiwaduzoniwilavud.pdfIn PDF document text
- http://webinaris.biz/ckfinder/userfiles/publics/files/33467264969.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/gemitirimerubazupoxapileg.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c6f16b0f9---67184832084.pdfIn PDF document text
- https://youxsoft.com/uploads/files/batoxigizus.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+synchronize+android+with+pcPDF 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_off0000d63d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD63D | 18540 bytes |
SHA-256: eb9742bc81bc5ba38f54276e313e5a1757a8f0e3e03cb0f9cce5b1b42a80ad69 |
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font_01_sfnt_off00010637.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10637 | 10816 bytes |
SHA-256: a8ba85c0752639bb2415f6a589749c47ccf0b3d1ff75352a60eeef3d37efc862 |
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font_02_sfnt_off00011f2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F2E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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