MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The presence of a link farm pointing to multiple distinct hosts, some of which are identified as compromised CMS uploads, further supports a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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 http://zhfangyuan.com/uploadfiles/files/teluxigiwadejinavegaven.pdf
- http://byty-pardubice.eu/UserFiles/File/kekegekagolesexen.pdf
- https://u-spot.biz/js/ckfinder/userfiles/files/33406925595.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/j1n6ea3l4enchn91gv0sda46h1/winajojakebibip.pdf
- https://rireenfrance.com/images/upload/files/42998946629.pdf
- https://retrofitoman.com/ckfinder/userfiles/files/lelur.pdf
- http://multi-accueil.fr/ressource/site-image/files/84536896740.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137105c61cfc---67350230828.pdf
- https://xtremefitksa.com/ckfinder/userfiles/files/40619827208.pdf
- http://honeycontacts.com/uploades/userfiles/file/vifoziwox.pdf
- http://xn----otbbfbbknchz.xn--p1ai/sadm_files/1326000105.pdf
- https://channeloflove.com/ckfinder/userfiles/files/94634260463.pdf
- https://bititechnika.com/uploads/file/28490297928.pdf
- http://liveranigioielli.it/userfiles/files/lerozugota.pdf
- http://frutapac.com/ckfinder/userfiles/files/36963441492.pdf
- http://tjchenxing.com/filespath/files/20210913143054.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614137fab94ea---42979295623.pdf
- http://zvaracskaskola.eu/editor_uploads/system/files/21882106117.pdf
- https://yenicekentkaplicasi.com/userfiles/file/pivetifamufotelobak.pdf
- http://xn--80adic7alej3d.xn--p1ai/userfiles/file/purenomumu.pdf
- http://steakpluspizza.us/userfiles/file/89566425040.pdf
- https://cmf8.ir/data/file/59091601157.pdf
- http://verzorgingsindex.nl/images/uploads/80163659801.pdf
- https://actionsporting.com/userfiles/files/sogudebupakujusu.pdf
- http://leadingedgecorporate.com/user_images/file/12266473712.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/qpeuc8lhb1p3mml6h7sfd5bb64/kezir.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=screen+flashlight+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_off0000be27.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE27 | 16792 bytes |
font_01_sfnt_off0000d63e.bind353890fe6602ecb079963993520ed0947fd3540e337d04c8f05e42e902c49ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD63E | 10804 bytes |
font_02_sfnt_off0000ef0e.bin1bb69c8df041c2c18c2c344b0d8e771cfe2af15001f216bbbf91c580c1debfbe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF0E | 18072 bytes |
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