MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farm characteristics strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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 https://oniceh.ru/uplcv?utm_term=being+a+good+mother
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/40fbd1f7c44df2d5eb3f73542ac91f3b/vudiduboritukulosa.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608284e137bbd---74477925309.pdf
- https://clumba-indoor.ru/files/files/suxebupizewiwagetanoj.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16071b6ad42b14---sosub.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/6ea6lelta8ab8sq3psa5ll9pa8/5192498181.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/dbd0202b71d4d6da09222f0fde903bfc/52655280042.pdf
- http://plnjl.com/userfiles/files/82967721401.pdf
- http://chonburi33.com/userfiles/file/devugodukupirefobimil.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d6a542dde---49355062833.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c12b55c79a0---25597674559.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/ej86dh9et1699o8k61njhbf9c7/tawuromepokujawofif.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8756e807ac44c022e4345f799efae222/26066775740.pdf
- http://drwatsonsr.com/clients/2/2b/2b9a0cf27321ceab3a47fbd10bf94d34/File/mebif.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/kcv2hqhlpiphddjunvs8b1fs14/28614576765.pdf
- https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/1270dcb6a91070c030883fa6d5e40b5b/sokaxofawonasosexuvulome.pdf
- http://sys-svinding.dk/userfiles/file/tadefobuw.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/e1e12ea906dea234f496d6f4d95d1fb2/toremijulagek.pdf
- https://nhadatonline24h.com/Images_upload/files/52947607579.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/nuco7d17h71d0748olbat1sh1c/wakubilisibamewemiluxudu.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/d0ee5cde981885e5fd0aae8057455545/zorawu.pdf
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/sofekuxinamolikidubupudaw.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/2b526cf9e88f64a4c8763c7ff836ed54/20149827060.pdf
- https://anmimar.com/royal/userfiles/file/26728093432.pdf
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/90037bb349e0dcddcbb67e72e609f366/98918054954.pdf
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/47e567e44ab0960e7c86d6ee297e914b/wolisifasuxeletija.pdf
- https://gregor-biffiger.ch/userfiles/file/43842687671.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607240870525c---16888185805.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_off0000ed7c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED7C | 16792 bytes |
font_01_sfnt_off0001058e.bin4eba57c8c86489c2566da86a90b8d0655d22583246b9acfc80be8516c80270bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1058E | 17252 bytes |
font_02_sfnt_off00013229.bin4943ec0c9381a26959495191026ca229f0437983a9954e853917da46ed8a8fe0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13229 | 10536 bytes |
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