MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress upload directories. These links likely serve as a link farm to lure users into downloading malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9895
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac114bf36d8---34958333374.pdf
- http://netmutum.com/userfiles/file/14590587621.pdf
- http://casier-a-bouteilles.com/file/pizanijebitojip.pdf
- http://termocity.by/pics/files/wosogezogumulatevo.pdf
- http://epoch-making.jp/js/upload/files/35777478734.pdf
- http://assushop.com/userfiles/assushop.com/file/tonexawunapu.pdf
- http://apexhealthnutrition.com/newerac2c/userfiles/file/54641886232.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c489d370437---90419378664.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb20284d90b---19361196253.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/2d3b4b88fb0e8c89e4d2b7141dd8cdd3/92289065976.pdf
- http://thepokeluau.com/uploads/files/vanizojekus.pdf
- http://aj-logistics.com/stock/userfiles/file/70523690432.pdf
- http://talleresjpg.es/img/file/61467523562.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/b27a205ee373d956923f59d80192488d/sigibonarelod.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5a9284351---lepoxijomuxelezo.pdf
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/11018172948.pdf
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/ab089688a5431adb6c44bf295bf1f883/1347812888.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16071f7dec6f71---kopavidoziwomab.pdf
- https://dineflon.com//files/rafadabu.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/kezixamotabudelenizatufa.pdf
- http://amandamaitland.com/images/file/ketivok.pdf
- https://minegociomiweb.com/userfiles/file/37238631597.pdf
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/a695ad78db45d1b4141de9244dedab07/poranikuzekafesezuguvajuk.pdf
- http://hitecds.com/userfiles/file/355885198.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c34fcb670---noparovapusovuke.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=happy+birthday+to+you+song+download+mp3+mr+jatt
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011528.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11528 | 16792 bytes |
font_01_sfnt_off00012d3a.binc258dcba504bec3c942586b01cc14d829006d5cc2dc2e10f45c9c59a3bae12b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D3A | 17948 bytes |
font_02_sfnt_off00015bd1.binf9065ac5d14694fd608b7750d758c6d6018f4fb308e820b0cf15976950cbcaf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15BD1 | 11440 bytes |
font_03_sfnt_off0001762d.bin5f9489db96fdfefda6296b7f3d1625c07d7946c1d71a655e11177c1cfffd0e72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1762D | 2440 bytes |
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