MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV, indicating it is likely a phishing or malware distribution lure. The document contains numerous links to external websites, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, but the presence of numerous URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9786
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://krisoc.ru/uplcv?utm_term=can+you+mix+satin+and+flat+paint
- https://mszukam.pl/dat//file/wipafatidisivemuxiwat.pdf
- https://egyiksem.hu/uploads/file/71972584471.pdf
- http://amblesidewindermere.ca/fckuploads/images/file/faviforepevevetuna.pdf
- http://thebrownbag.vn/upload/files/36205599624.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/q4d54t0gvi1m4gmcee5amu8289/timujukumizalus.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/f7a605580c2c7676e2913b9362acacc0/59429951670.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a118159016c---rirelajozoza.pdf
- https://dalilak1.com/userfiles/file/barokefatosonan.pdf
- http://lapawan15.com/shop/fck_file/file/3210652693.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/zikuduj.pdf
- http://teraval.cz/res/file/88072009555.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/771afb6a3c6ba2b76a90f40080c51631/79219387113.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095f113cccc2---wigafopotigik.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f334806262784abefebc2c8c1d2680b6/39362510431.pdf
- https://bruceautoservice.com/files/file/39274691881.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/60a29953c7de1157b46aa8532451bf1f/68360799095.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/c04faedcd63a9d7566a16885fb568a82/45335226621.pdf
- http://bernardthevenet.fr/ckfinder/userfiles/files/2655151600.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b7999230e8e---28429740012.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/52aef9f84ac1bb5f74fd784e52b70019/48363825051.pdf
- http://stuarteisbrucklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xenuparolezitugoxi.pdf
- http://aarogyamedico.com/userfiles/file/lidaxejiziminevabu.pdf
- http://lamelove-zakryti.cz/userfiles/file/95269900714.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ffbc9b43d---diwaseb.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16093e87624aa9---nopotesekibagejefuvokaxez.pdf
- http://castrolmintabolt.hu/images/upload/file/vuxil.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f211.bin5904663ab11942d043216852f08ece2c3ff86b651556b030d7709e9b83f5d14f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF211 | 17192 bytes |
font_01_sfnt_off00011ee5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EE5 | 16792 bytes |
font_02_sfnt_off000136fc.bin252748f4e773c9b7930d2081bcf916d7575a284b67e50fa2c1ada980a355c57d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136FC | 10772 bytes |
font_03_sfnt_off00014fcf.binbfc7ce51a1a9b37382af61f0075eb0cdb972126da031002d338643432d80e6e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FCF | 16252 bytes |
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