MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and contains embedded JavaScript, indicating a malicious intent to execute code. The document also features a link farm pointing to compromised WordPress uploads and disposable hosting, likely serving as a lure for users to download further malicious content or visit phishing pages. The presence of numerous external URIs and a ML classifier score of 0.994817 strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://inwebjor.ru/uplcv?utm_term=android+best+tower+defense+2020
- http://finalstage.biz/js/upload/files/duxex.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d94b9e8a30---xokilufe.pdf
- https://safewatersolutions.in/ckfinder/userfiles/files/1624685448.pdf
- https://bahceneryaman.net/public/content-images/files/kutojatubakudanavisivebi.pdf
- http://aan.kz/ckfinder/userfiles/files/84094743565.pdf
- http://www.kickcommerce.com/userfiles/file/96171137068.pdf
- https://orig-shop-gsm.ro/ckfinder/userfiles/files/44514979866.pdf
- https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/lagididiravosawutijila.pdf
- https://servicepapik.ro/files/volevelusiluz.pdf
- http://autoklej.pl/app/webroot/media/files/lasanotisevokasusetiv.pdf
- http://manvilastrust-org.bvirani.com/ckfinder/userfiles/files/18873034503.pdf
- http://aorganboys.handyfriendship.com/upload/files/45310223373.pdf
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/74813312718.pdf
- http://craft-personal.de/userfiles/file/fotawa.pdf
- https://takarasushimn.com/userfiles/files/famuvenozimegunapem.pdf
- https://tipresentoio.it/images/file/90690052359.pdf
- http://klhl.com/userfiles/file/xuxumudapewo.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613527612b001---62257256167.pdf
- https://xtremefitksa.com/ckfinder/userfiles/files/80483800833.pdf
- http://n3ss.ro/ckfinder/userfiles/files/livoko.pdf
- http://nguyenthaotech.com/upload/files/jirowomifepolavugola.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/161328a40366c4---sudalik.pdf
- https://irrisyst.eu/files/file/nakuxukikofobosuf.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_off0000ec3e.bin4d31559e024d59f082b3ecc4148ed4fe40c2e79d04a93940e1ae7c1d4cb2a8e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC3E | 10588 bytes |
font_01_sfnt_off000104a6.bin46f805ac9334a0b0cea6ad8d1d5a7b9a2ce80486b0b60f33ea6582df666211a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104A6 | 18324 bytes |
font_02_sfnt_off00013483.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13483 | 16792 bytes |
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