MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links pointing to compromised WordPress sites, many of which host further PDF files. This suggests a phishing or scam campaign where the initial PDF acts as a lure to download more malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/87aff55b9b857f5e4925be5406b55535/risogadojamanuvifazazuve.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/4b960b289885d9a1ecb67da418e09930/xagem.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/d8af63486c7d16f13b2014eb0e0c751a/pomupupafajarik.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16084dac68f7c3---lonomuxonukelixufori.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d37c824e404---75984821261.pdf
- http://africa-emergence2019.com/userfiles/file/nasizamizotila.pdf
- https://lamaisonducoeur.ca/upload/editor/file/sogob.pdf
- http://creative-format.com/upload/editor/files/jibefokijofavero.pdf
- http://yds-wcv.jp/free_images/files/fawuvabotitakutesovi.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec6f582d9b---puseguxuguke.pdf
- https://medtek.vn/storage/file/20156401539.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8b2ce6fd8---9831750888.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160867e64e87bf---35186358575.pdf
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef7f053b42---lotibakebideja.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d93649920---48844794106.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609081e654f48---zugokumabojijome.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160be82f28dc18---5740517147.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160971be03fb1f---zivozefuv.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d91b1ec9e99---81313749902.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/58461035794.pdf
- http://saovietgroup.com/upload/FCK/file/5183156886.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=operating+system+mcq+pdf+download
- 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_off0000eecd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECD | 16792 bytes |
font_01_sfnt_off000106e4.binf6691f82202df49352c08bf334f4b31e5ff92905cb93036f2a5cf9f77f9ff51a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106E4 | 11332 bytes |
font_02_sfnt_off00012120.binf2e80fedafbd0fe12de37b796df0def569c1fc67666bd895219b12d5622f43b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12120 | 17404 bytes |
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