MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised WordPress sites. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The presence of numerous external links suggests an attempt to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/oqbokl6icq3r61a4akpsiba612/25647843816.pdf
- https://nepalaviationmuseum.com/userfiles/files/83897498272.pdf
- http://okuninka-biale.pl/userfiles/file/vunawojesador.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a3643b71039---dobikogakobip.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16082f9d5b9ffb---21873741181.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160b6d8f86cf9a---92967261746.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/v2e1vcik579vdfps5uiiola8n0/sisusemapo.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/eaa7e85a2e956cb976a2b5a603f1a102/pisiwivezikex.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160983249d4232---20476540751.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca981aacd9---zoniretutizugovanamesa.pdf
- http://cogersquest.com/clients/f/f6/f6194b381802d71b6842d6160e8859b1/File/lusudikezefegepisewovixu.pdf
- https://tahubunting1.com/contents//files/50458766599.pdf
- http://generaltubi.com/container/ckfiles/files/82385337348.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7ee0bc111---pisedo.pdf
- http://agriturismolataggiasca.eu/userfiles/files/sokugenetivesafuduw.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/c4177cc40c7bb1f51690c837888dc0ed/58217280898.pdf
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/38c85869ffdc1708b0cdec57adaed8bb/89837336207.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/a9443bce3cdc775aab50fb986a200984/kelere.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160784ca6384cc---57022568805.pdf
- http://www.odnpoznan.pl/fotki/file/file/48346304287.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606f60b358bda---gipapiruzepupetudiko.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e585c154167---lumoned.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2fd1b93570---55460160570.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160adbca0bb61e---17140162619.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/310a81d139c093f67b5f3636a6d601d4/560446392.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=convert+4+inches+to+cm
- 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_off0000e702.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE702 | 16792 bytes |
font_01_sfnt_off0000ff14.bin96c2c9cc377e8f8b0670124d3ac12f82cdec6b9d32f64cf632ae8f54333b8f5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF14 | 16508 bytes |
font_02_sfnt_off0001298e.bine0432a4794629b453a187a6ebb31c8bda4577227db9e582655f628b1e79843bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1298E | 10460 bytes |
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