MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting it's part of a link farm designed to redirect users to potentially malicious content. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this, indicating a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://smidgel.ru/uplcv?utm_term=gta+5+apk+without+human+verification
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613304a6b2625---nuzosopijum.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16134a4edb984f---64313357910.pdf
- http://giasuthienphuc.com/Images_upload/files/jipobujalo.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161422a0ce9158---70027469734.pdf
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/sunetasezibub.pdf
- https://airxps.com/userfiles/files/muduxufojal.pdf
- http://studiotecnicoforace.eu/userfiles/files/zowefomexerobe.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a673503691---zujanix.pdf
- https://www.amata.org.uk/ckfinder/userfiles/files/36282007815.pdf
- https://ruedi-leuthold.com/userfiles/files/65577488117.pdf
- http://kesifveotesi.com/files/46382132717.pdf
- http://lavalnerina.com/userfiles/file/38248886498.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/pgcsoe24at4le5n5ktbtg8erus/danudemewuxizaw.pdf
- https://btsis.com/upload/ckfinder/files/16128856344.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/008e6962fc1718c993564397f94954f4/3659395588.pdf
- https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/74740277062.pdf
- http://www.findvoters.com/userfiles/file/27640794124.pdf
- https://tims.ro/ckfinder/userfiles/files/5316533221.pdf
- http://akcjonariusz.com/UserFiles/file/50186216433.pdf
- https://betalinktech.com/blmedia/file/wurosugavu.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/549c5f9c5a80e983d16abac25775ea61/82634158499.pdf
- http://jinanxintiandi.com/userfiles/files/makemujadepoborozuxuze.pdf
- http://labsshop.com/d/files/gakuneti.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/tasn7fplr8bg7g9kqhnsr6ni25/58111444384.pdf
- https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/87245475874.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_off0000f305.bind54e1522d3429f5586bec9679dedac9c984f4511a36331baa92c26106c6a48a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF305 | 17780 bytes |
font_01_sfnt_off000120e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120E1 | 16792 bytes |
font_02_sfnt_off000138f8.bina51fc8a8f4b8812b7642fe0a909d2c86d162f13352092b9d2dbce4b9b0d49460 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138F8 | 11048 bytes |
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