MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as containing a link farm pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. While no scripts were extracted, the presence of numerous external links suggests an attempt to redirect the user to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9844
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://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae50fb36d7---bavililenuku.pdf
- https://inwestorfinanse.pl/userfiles/file/67982578796.pdf
- http://lnaixi.com/userfiles/file/20210908230802_1507516449.pdf
- http://ulrike-mayer.de/userfiles/files/bexegusubisexutuwopubutal.pdf
- https://sofanet.ro/ckfinder/userfiles/files/fubajeba.pdf
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/33549666180.pdf
- https://mabuksusu.com/contents/files/roniwefedafubewurefox.pdf
- http://afslab.asia/upload/files/xuzuwufudanenobef.pdf
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/bofeporogojinagofel.pdf
- https://epagneuls-bretons.fr/caningest/images/file/rametovubijopenaderanuwi.pdf
- https://reha.bg/content/upload/file/40701207817.pdf
- https://pvcmikser.com/upload/files/45568047255.pdf
- http://budaikepkeret.hu/uploads/file/xukopajorurelevobi.pdf
- http://111-orte.com/testarea/cwsCMSlight/media/files/wolerobobiworasemotige.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/9f4dfabb5ccec3f79d46575aa6158198/19863627844.pdf
- http://xn--2osv9pt2jfpt.com/uploadfiles/files/togelikuf.pdf
- http://imhome-listings.com/userfiles/files/tuxotilitafapekipemiku.pdf
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/41284293929.pdf
- http://carbontuning.ru/file/6544667404.pdf
- https://dichvuketoanvn.org/uploads/files/55656399065.pdf
- http://homestationrealty.com/userfiles/files/nopazexejubiriputit.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/161420ee1a2024---80727244924.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/220fdfbb6f09e008063fe4abb271a16a/sujipijesabepavikale.pdf
- http://vce34.ru/attachments/file/mowimosazubojorimifa.pdf
- https://coopinproject.eu/ckfinder/userfiles/files/mixazenafulurabitavose.pdf
- https://aquamedicasatumare.ro/ckfinder/userfiles/files/pigofodotuvetuvonulabo.pdf
- https://fullmagicweekend.com/ckfinder/userfiles/files/41813079626.pdf
- https://euinsuti.uniluxgym.ro/app/webroot/files/userfiles/files/6699182719.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=security+master+mod+apk
- 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_off0000c9ae.bincb13c71d3e7d7f0e1cbf1f1128d79e43b8e7f83e4088fd0a6a6ce137fafc4262 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AE | 10904 bytes |
font_01_sfnt_off0000e304.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE304 | 16792 bytes |
font_02_sfnt_off0000fb16.bin990f6380ec2bacf196bc6d6f462ba57126dbac5dfcf3dbcc12d23beae34a6097 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB16 | 18020 bytes |
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