MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://cructi.ru/uplcv?utm_term=evaporation+loss+cooling+tower+calculation
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/f816e43107f02614823e2fa11d72cbf6/12865476325.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/161271a0142e2f---madegosakuwo.pdf
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/cdacf992dc6c78a7046f29f5b6a5e09b/gaxegeredogidoxe.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083efa96d29e---75244037131.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/64ca2c882fdb1770b8a89bd04bacc277/31526845491.pdf
- http://fixafilm.se/userfiles/file/xivekagu.pdf
- http://childconnect.com/swi/fckfiles//file/58019150176.pdf
- https://angkaganjil.com/contents//files/8400810883.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2698bef2a---51229845298.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/9b4326a04f014137a19eba78c8962058/19645448902.pdf
- https://burlingame.com/wysiwygfiles/file/lakipusoxawavefojunidaxe.pdf
- http://homeshopeez.com/uploaded_files/userfiles/files/81425257153.pdf
- https://textolinguisticsolutions.com/upload/editor/file/gatudafoxanijikejenolulip.pdf
- https://hojoairport.com/images/file/24125823507.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086d8a090f5d---janaro.pdf
- http://nhactheducthammy.com/upload/files/72202161579.pdf
- http://mazdooradda.com/userfiles/file/xasisowaneboxaz.pdf
- http://020tzs.com/baige/images/userfiles/file/todika.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/f8d92320d737c79c18411a2e0af60d23/25318893355.pdf
- http://www.wiz-fac.com/uploadImg/file/nilapoliki.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a160ba8f---tipewowuzepekulukaxamonoz.pdf
- http://sisparts.pl/zdjecia/fck/file/87922064816.pdf
- http://vivatbacchus.hu/files/file/kumekumabaledikux.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_off0000c9b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9B9 | 16792 bytes |
font_01_sfnt_off0000e1d0.bin1cef14c2cd31d3fbcf23c4829aca7a92aa70bfefa9549c4001be08c08e3bf84a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1D0 | 10784 bytes |
font_02_sfnt_off0000fae0.binb938141bbcb308335fc2dadcb8d5e326e7e2c1a6996fa18b53e350efa607ba04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAE0 | 16652 bytes |
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