MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content or phishing lures. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://synerhu.ru/uplcv?utm_term=free+download+after+effects+cc+2020
- http://healthywithhart.com/res/file/71254200921.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/cje0savhpeunmrqdohc6cta3in/59551784204.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/a82f59a91299c78195db52c243560aaa/teperinazikerolupikow.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160abf405e8221---74691948132.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/bc679a5ae18984b9589d02dce10c73e0/pegaged.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609203c021b0b---sugutajunofawututodup.pdf
- https://decoveinvestment.com/userfiles/file/10680076491.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/2e71d23cf18011908e4f580d9df887ec/94768459908.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/56rshapas9sb0mkqba75dvhci7/kapufubadusetisud.pdf
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/dcl4esgs8uvd9vio5cg7lchjcs/49729801449.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc4cb357b0---60715645717.pdf
- http://youngshiny.com/userfiles/file/1624521288.pdf
- http://alituncer.com/userfiles/file/89701204741.pdf
- https://signika.pl/Upload/file/tokazukegeko.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7293ceecd---17000027718.pdf
- http://99hospitalitygroup.com/ckfinder/userfiles/files/50671331968.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d97488a33b---100340812.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/3e53915cec21c80dfc073f73ae58dac8/kazumesasutifuwopozivobad.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/lotrebtf3fme6pj8atcft218q7/gusepakezo.pdf
- https://szabobuszrendeles.hu/files/files/39749829859.pdf
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/ec4946ec353347ad095e70c12da4e271/wetedorikevapi.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608decbb6bc85---buxad.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ca4d3bf6c---wolizijizinew.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/a26lfiqpmim167r27en57a40vv/pozazozejelebadoduzenefa.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/53660b1c4b6f9d37799c63b70e59b22d/rudasi.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_off0000f978.bin674391ef1065d7d79771981579ae258d3e0a8eb9ec57dd951fde26a3d77abd5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF978 | 29952 bytes |
font_01_sfnt_off000134e7.bin27162a1a8425edd712533cb373ed95b51d1bcf8c28cfda8171deccd049b3d008 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134E7 | 10680 bytes |
font_02_sfnt_off00014dab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DAB | 16792 bytes |
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