MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to lead users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely a phishing lure or a downloader for further payloads. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://oniceh.ru/uplcv?utm_term=finite+element+method+ansys
- https://actor-conseil.com/files/file/7282748670.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608760dd0db24---26434374019.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/3ad2b9420cbb98820979e0588476fe02/sapulapisa.pdf
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/07f146e69a26b0db7aa677787123e7b8/65447849724.pdf
- http://df-2.de/images/daten/file/buvonavofosok.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e2b019720---95548179708.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788643b7b87---niridikiwij.pdf
- http://kinocosmik.ru/sadm_files/wisavovogewatibeduworo.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/dqi1hdlngqr7un82pc62g8vabr/61134943638.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b86635a5cc2---luzodojebawukiginozegim.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/75ab2c9f5820222e637873b5a11ba52c/62075762800.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca326eafa2---87546621621.pdf
- http://glina-master.ru/admin/ckfinder/userfiles/files/zokadevubolunorawu.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb3a69915c---81038492169.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/9814237e7c70b50b0a9896bbdf8e8c5a/50601633994.pdf
- http://aranykoronakft.hu/userfiles/file/fosuvixijexumasula.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/203c2421fe2e08a9e913dc06e623c9d8/desipogejurenesimaka.pdf
- http://msinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/18321636300.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792f2ab06a3---78016133605.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088610a50020---70654173523.pdf
- http://christopherspubandgrille.com/userfiles/files/64133822132.pdf
- http://tc-antey.ru/uploads/files/88247075106.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/77f3ccaa2cfcd4c17044b8b2e60cebea/xopuf.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1666f0ab---palasedati.pdf
- http://maychamsocda.vn/images/userfiles/file/10473072024.pdf
- http://automsystem.com/UploadFile/file/20210607143349206.pdf
- http://ankurgroups.com/userfiles/file/lexaweba.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_off0000f4ef.binb81cfd1d38a45b82b26a1473aefe0a4b3415da574977b565a3ae27378fcf572c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4EF | 10504 bytes |
font_01_sfnt_off00010c9f.bin3964cc3556751284ad69aa1b183c42b352eb847c948481d9271cd7c7d42361a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C9F | 17316 bytes |
font_02_sfnt_off00013906.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13906 | 16792 bytes |
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