MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous external URLs, many hosted on compromised WordPress sites, suggesting it functions as a link farm or phishing lure. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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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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://ketchas.ru/uplcv?utm_term=full+marks+guide+class+9+tamil+pdf+free+download
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608517bd899a1---kofakekuwipanorujigi.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/600b9jpmekatd5bi98ftqkctqi/bejafijiguzubekeza.pdf
- https://protradingindia.net/userfiles/file/89053081533.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c75e153f8---zaxaruja.pdf
- http://iccj.jp/images/uploads/fckeditor/file/44665071275.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/07cf69e4cd97dbed45ce31a0693aa5cd/52245614600.pdf
- https://tavcam.com/upload/ckfinder/files/44694825694.pdf
- https://ajitcoatings.com/uploads/liwif.pdf
- https://gyn-koe70.de/obrazky/file/rebipeb.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/k5shqomf2p5g2p50mn0sgpqlk1/fufodu.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/bv757jafc5scs2gn596f2cfd8u/21753249405.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4hg5og777t2e6obeo4vp5dc860/66883561187.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076b2ddb60a4---5606711791.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7dd80a617---27956470677.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_off0001768e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1768E | 16792 bytes |
font_01_sfnt_off00018ea5.bind09c57fbcdf455d3a75ed03b9337e093e540fecbb7a91c3f8b39ce851bafa60c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18EA5 | 11388 bytes |
font_02_sfnt_off0001a94d.bin5eb5a2e3bea982ad977ec9525ed48e9911758def055ddd7e5386319362f56351 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A94D | 15868 bytes |
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