MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The presence of multiple URLs pointing to compromised CMS upload storage and disposable hosting suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download server. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/7343efa86acab68355baf400285477c5/vakudibiwaxenebagajijixu.pdf
- https://daismene.it/file/65656893377.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/9a9812fdb905a55099fda3298b8c40ed/2808251803.pdf
- http://thunderstar.cn/userfiles/file/20210507230210254568279.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc6128996b---pozukawonuwibajumilaxujab.pdf
- http://eurekaelearning.com/upload/news/file/53114177024.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/14cbc6dceccaa54ddbb625536ad3d88f/kanebolirowivi.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767e6f26f20---63122178733.pdf
- http://cfacgroupe.com/uploads/FCK_files/file/57846593516.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16072e0dadf26d---9901223082.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/7beebf16128b81f91e9ac914612cb394/13648346116.pdf
- http://2ds-creations.fr/userfiles/file/mavevipikibisarifewizapoj.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894863e4e3e---92807590798.pdf
- https://ancoraeducacion.com/images/63571499542.pdf
- https://savitravel.ro/ckfinder/userfiles/files/desugozo.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc36fbbb2e2---tewemilakowojalo.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/892lapv9svo98699n1q86k78ov/wekuwazipexoxezidadej.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/dd0109c73b1df95c03b6cfef9651babc/bufodinitositabipibi.pdf
- http://targhevaticane.it/userfiles/files/fexivunadoxud.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/1e74f4b90be40d1c921d8db88039911a/95718802894.pdf
- http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/bifusix.pdf
- http://thegreenlegacykeepers.com/clients/e/e8/e8dc17949b7ef813e9937e453902477f/File/dixifevatamegapes.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073082c27077---35416022141.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608dcddce20fd---guniral.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160878660bc65b---22243373335.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4bec56318---58940157372.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=tiny+red+spiders
- 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_off0000ed33.bin2ce15ac24a74eb5f0ce8fa1c5a26c2bf266f917b076859870845afd7189c8cc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED33 | 16884 bytes |
font_01_sfnt_off0001193b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1193B | 16792 bytes |
font_02_sfnt_off00013152.bin6bc1c0f1565ca7599963cfd3eb00a492c00c3b2dfadeddec094883e2db7d0a18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13152 | 10036 bytes |
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