MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing and trojan distribution. The heuristics indicate it functions as a link farm, directing users to various external URLs, one of which is a browser update lure. The document's structure and embedded links suggest an attempt to trick users into downloading malicious content or providing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://laborke.ru/uplcv?utm_term=android+internet+browser+update
- http://fuyu.010bi.com/ckfinder/userfiles/files/ratekurujaw.pdf
- http://nakloboucku.cz/uploaded/file/jarimuritusogafi.pdf
- https://nedimgame.com/calisma2/files/uploads/62456974428.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16135dedfb8323---zebowuvivezeperemeg.pdf
- http://dekoblickfang.de/userfiles/file/vuxanedejixediw.pdf
- https://charteriraq.ir/basefile/charteriraqir/files/86084955674.pdf
- http://cofetariafraguta.ro/UserFiles/file/25655352284.pdf
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/83723491127.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132abab43ee7---kojozilibexenewete.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/f0cb7486881a54671cc991e93537e217/69476695616.pdf
- http://www.thaitofu.com/image/upload/File/marugofafotinolitoge.pdf
- http://architettotamborra.eu/userfiles/files/tujomewotewilokigeluxufe.pdf
- https://protum.se/file/sasasivamemibebu.pdf
- http://elektro-galerie-hamburg.de/userfiles/file/49813054006.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16141e39cec3f4---xuromelaxakimefaxiwarorum.pdf
- http://nbnjl.com/userfiles/files/durifujirurutipazur.pdf
- http://darstin.com/userfiles/files/23981448574.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b844ce03a---kopuxoxetili.pdf
- https://extremedriveline.com/ckfinder/userfiles/files/52851606822.pdf
- https://iwanbim.iwan.co/userfiles/files/71223714413.pdf
- http://godsownproperties.com/userfiles/file/27613424505.pdf
- https://namhunglogistic.vn/site/files/sepiwapakapovez.pdf
- http://auto-spec.ca/fck/file/gabololodutijagabokepiko.pdf
- http://stefanourso.com/public/userfiles/file/7384632877.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1613be15c88587---70224330253.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_off0000b6e6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6E6 | 16792 bytes |
font_01_sfnt_off0000cefd.bind1e50a82c510b45d6beb22c5c4aeca66b40ec0b10b2da128c77bb4c76e80e4d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEFD | 10648 bytes |
font_02_sfnt_off0000e758.bin4ae30041c882a94036e0ed30d71a025a912afb6c9fbd54842ecab14ccbe81f06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE758 | 14424 bytes |
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