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 compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using disposable hosting and compromised sites to host or link to content. The embedded JavaScript likely facilitates the redirection or further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://infrive.ru/uplcv?utm_term=can+you+watch+firestick+on+phone
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4ef3b3628---90263368698.pdf
- https://sanghvicranes.com/staging/media/15819820326.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142411a62300---11301110352.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/161418f750f46b---8193299925.pdf
- https://onsale.social-push.cc/data/fckeditor/files/56261255088.pdf
- http://vilniausgreziniai.lt/userfiles/file/zikug.pdf
- https://pmcp-avac.com/files/upload-ckfinder/files/gurevagoribe.pdf
- http://rovitek.com/userfiles/file/turofepav.pdf
- https://ajambary.com/userfiles/file/22716840850.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8492ced58---83078035339.pdf
- https://xn--z4qq44i.xn--kpry57d/upload/actfiles/47427515731.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614037cfd1512---59691180378.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/51720631500.pdf
- https://digireg.it/upload/butofevedivu.pdf
- http://heryeryesil.com/resimlerfiles/74622131005.pdf
- http://www.blueoak.fr/image/file/40464791714.pdf
- http://gdgom.com/upload/file/210903001200436674czyzxt14c4zh.pdf
- http://ipublicity.cz/data/file/xipenemukenel.pdf
- http://asbu.net/uploads/FCK_files/file/698974827.pdf
- http://ecohost.ru/pics/images/file/xitidabewuv.pdf
- http://tecnoservizi.com/userfiles/files/toruwigosuweredenew.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/16138ec3a46413---wanakinedatuxefomonazim.pdf
- http://chiengthai.com/file_media/file_image/file/binatukotibepozojem.pdf
- https://pastelbuilders.com/userfiles/file/39026489785.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/497c6feb2f1d75a381427256f2f569bb/38244021690.pdf
- https://helicopterleasingservices.com/userfiles/files/poxasagadop.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_off0000de0d.bin67c978b3673a1b29754bb25aeff45a172bbc2110c889ef729de3d3fa09ee3d22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE0D | 10952 bytes |
font_01_sfnt_off0000f78c.binf0aff0ce71f9c6918f11d2f09de07ef82d685f183b3444337f65bd39674b83aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78C | 18012 bytes |
font_02_sfnt_off00012668.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12668 | 16792 bytes |
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