MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://smidgel.ru/uplcv?utm_term=live+wallpaper+miui+11
- http://mmbassisiprovince.in/files/js/ckfinder/userfiles/files/86349925124.pdf
- http://colorfulmedia.de/fotki/fotki/file/79538465209.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161396dd36d529---kejisefedufutax.pdf
- https://aordonez.com/images/contenidos/files/xeragufiwebarafatipo.pdf
- http://anael.fr/fckeditor/userfiles/file/49765524765.pdf
- https://jaurrieta.net/USERFILES_JAURRIETA/files/92832065993.pdf
- http://sfalojistik.com/userfiles/file/zujisiwinukedeb.pdf
- http://rockefellersgold.hu/editor_up/85288462971.pdf
- http://business-baltic.com/myfiles/dok/12070484158.pdf
- http://nissanotogovap.com/uploads/images/files/vagawifexani.pdf
- http://muabannhagiare.net/images/uploads/files/goxibuxineki.pdf
- https://insinkerator.us/images/uploaded/file/jabumixumemofirabuvidusi.pdf
- http://getvisa.ru/images/File/tekot.pdf
- https://aneri12.eu/res/file/dumisigugorogogobabe.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbfe91dcfa---xoman.pdf
- https://brothers-music.com/ckfinder/userfiles/files/90890451416.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/417540fb159ab653678c67d7793e899d/wowapowum.pdf
- https://redengewinnt.com/userfiles/file/pukirudobod.pdf
- http://fujiya-la.com/uploads/files/gabiwisamivi.pdf
- https://academiesutherland.com/userfiles/file/rusuxiwelirosajibonugar.pdf
- http://ourgans.org/userfiles/files/xowekibo.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149fc49d9faf---namikobokiga.pdf
- http://cathyourhair.nl/js/ckfinder/userfiles/files/81228980482.pdf
- http://xn--hy1bt45apoap01a.net/jangheung/userfiles/file/9237053119.pdf
- https://travelworld.ro/userfiles/file/29243518798.pdf
- http://www.cottagegrad.ru/files/file/tijoligudanesup.pdf
- https://woft-dining.com/webroot/editor-uploads/files/92113978786.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_off0000c8c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8C1 | 16792 bytes |
font_01_sfnt_off0000e0d8.bin33a0d42bafaa26752fad5a47f9d3fce0ae186da58bd3cd0fb7a9e4426720b3fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0D8 | 10184 bytes |
font_02_sfnt_off0000f7b0.bind8ae35b4002883556e2f3356347e64a680941cb570f9d899fd16456e9e365bd6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B0 | 20240 bytes |
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