MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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=mmorpg+f2p+android
- http://onlinetradeshow.ir/uploads/files/16991074814.pdf
- http://lishasurgical.in/ckeditor/ckfinder/userfiles/files/89221591824.pdf
- http://anpo.vn/upload/files/95407154819.pdf
- http://uitvaartverzorgingsindex.nl/images/uploads/4825209385.pdf
- http://alburigiott.it/userfiles/files/dananeda.pdf
- https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/89704502421.pdf
- http://avision-italia.com/userfiles/files/saxadif.pdf
- http://giadinhmedia.com/uploads/files/18798128716.pdf
- https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/94387632836.pdf
- https://lacaune.hu/userfiles/file/52740603538.pdf
- http://hidrometa.com/images_upload/files/75962698569.pdf
- http://allier.proximeo.com/ckfinder/userfiles/files/6752667356.pdf
- https://webmakler.org/userfiles/file/xubabasotetokijulo.pdf
- http://ideviceplus.be/app/webroot/files/userfiles/files/20064241019.pdf
- http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/75350987931.pdf
- http://kronikarp.pl/ckfinder/userfiles/files/nifanakiso.pdf
- http://ajivikafinance.com/userfiles/file/77775374447.pdf
- http://titibbs.xyz/js/ckfinder/userfiles/files/13376896949.pdf
- http://tulga.ru/editor/files/25464865163.pdf
- http://misr-consult.com/userfiles/file/15539825229.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/dfphj1lm1ab6hg8fur41hm5f9e/vosule.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/0b2d1e02382a2f82fddf6bcf54ccc00f/41765814158.pdf
- http://szakkepzosiklos.hu/upload/file/86462878928.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161399c0ea6585---66185028026.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_off0000d310.bin5ffcac344a72da5c0efcd27e800388acfe6a88abf3c693f827f518a126b02603 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD310 | 16892 bytes |
font_01_sfnt_off0000fedd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDD | 16792 bytes |
font_02_sfnt_off000116f4.binf87c6017be6eb1dfa61fcff8493c1f5b1f0a65e95fe7c138d26f90d3a31cd07c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F4 | 10512 bytes |
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