MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories. These links likely serve as lures for phishing or to distribute further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/b7fb757d7216905c11fcc0441078b931/novisugitotovatifotavega.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb1b1aff10---19233038311.pdf
- http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/95961021730.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/07jr5bbig45ronp2p0sim14jn9/82535280601.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080356e6a36b---gakuvapedojekogapi.pdf
- http://chromowane.com/userfiles/file/ladinokexowa.pdf
- http://cyuanmei.com/userfiles/file/nejolurulozirikufipuja.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ab186ce6c---lejavat.pdf
- http://blesk-stroy.ru/userfiles/files/14065798652.pdf
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/cltg4gb58dr734j49dc8959n96/73058690075.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161368c305af6f---9568782923.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af5a5aefd48---88512423758.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f91f6b025---605942851.pdf
- https://cottingham-group.com/cufiles/files/87716509731.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/4140336be96ce789c443fb0ad0156210/88415425581.pdf
- http://rongqichem.com/upload/files/mawekejolifurasedixef.pdf
- http://autohondl.cz/userfiles/file/24159043966.pdf
- http://egitara.com/upfiles/files/31262165369.pdf
- http://kondicionery-shodnya.ru/upload_picture/file/7269938202.pdf
- http://aisef.org/uploads/userfiles/file/file/norewipamovagon.pdf
- https://ubranni.com/uploader/files/29605228452.pdf
- http://janaturismointegrato.com/uploads/file/xutatenatumozinuzus.pdf
- http://ellissi.org/userfiles/files/89077931733.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=kishore+kumar+biography+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00017494.bin47948b3ef510db383031b5c87a30a7daecac45754001a84047b44346b4c74a97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17494 | 21936 bytes |
font_01_sfnt_off0001adcb.bin1481cf491aede7e5f759d996ddfb6aaf45bcbb78896682853fc0e5b7f5845697 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1ADCB | 11132 bytes |
font_02_sfnt_off0001c761.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C761 | 16792 bytes |
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