MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external URIs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV and ML classifiers confirm its malicious nature, specifically flagging it as a phishing trojan. The embedded URLs suggest an attempt to lure users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://driver-jazda.pl/upload/file/94653581404.pdf
- http://brlairport.com/images/file/togavuriw.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-6-26/20210626025130455830.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160de540b921ee---mijedibex.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7572a7ad65---34053594726.pdf
- https://locktactyuma.com/ckfinder/userfiles/files/nafotonozorojavar.pdf
- http://playfromhome.org/clients/4/49/49939bf6a151252ba1adfe53d1befa29/File/rajazajuboj.pdf
- http://web68s.com/upload/files/managateromebura.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742c88a7756---vijotekibikatipepimabako.pdf
- http://qytbearing.com/upfile/file/dokora.pdf
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/c7aabdccbf9c00851186f4216cc2b3d0/65760855340.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/kp6i7mm0ni0armfm99itbvk85n/miwubedeke.pdf
- http://matthewsmillsreunion.com/clients/c/c7/c7863f7b93cb17915b2a89d887155530/File/madasenegijunulorojok.pdf
- http://sro52.ru/uploads/files/vonodus.pdf
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/nbsle6n48n5sue8o654026mp80/biger.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160828c439e01a---44871390917.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825457b8b80---94825444146.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/ol5h2vraar90b6ncf8t20kg5fn/55824129434.pdf
- http://henri-ruch.ch/doc_pub/file/80455563862.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/22f84066dcd0ad113362b2e167d2e2cb/60033072902.pdf
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/saputi.pdf
- http://arci-mp.fr/admin/File/45271087341.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160bdbc68f0bed---bivaretipuvex.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/ba0892593bec824dae0992825b44d183/56221800062.pdf
- http://thamdinhgiadaiquang.com/img/files/zukupisomurudisejizezip.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=paid+books+free+download+sites
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/3f58e5a1911011e009aa701d5e62f24e/zudowokutav.pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c88d95c140---96678391910.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_off0000f9bc.bin2b78fab9740f15c5a9bf1d6aa049db8922db0f0e40854a28843e6d61e8ffb001 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BC | 10664 bytes |
font_01_sfnt_off0001125d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1125D | 16792 bytes |
font_02_sfnt_off00012a6f.bin15f2f24e6d0ea952e441656c94d4123752bfffb5b8688141c88204951ffcbed8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A6F | 17592 bytes |
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