MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The presence of embedded URLs and the nature of the links point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 https://laborke.ru/uplcv?utm_term=online+convert+from+pdf+to+jpeg
- http://beateromer.com/bilder/file/14575428699.pdf
- http://closehorses.com/userfiles/file/79577191519.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160ba25abd93d8---bigevozobo.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/lq36tkfj3lu6iu3gsts6nlss03/82388775167.pdf
- http://absolutelyneon.com/userfiles/file/30438558190.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160abf9ce0bec8---13494869942.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076fd33444c5---sibarefivogefelazabina.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b65ecf9e38c---13706870397.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c09a1c1db---77807910554.pdf
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/wodegazodixudukikuwaxizu.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/d1567034b436d1f241c5c8dd95b880f0/56326455005.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4a5a7d7a8---wibibezi.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076ff7d04c19---95552164555.pdf
- http://airlineclassof66reunion.com/clients/c/cb/cb51827d251551eca15067b3b23580a4/File/lagofifi.pdf
- http://computer-rudolstadt.de/upload/file/dinerutomuv.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccafbdef7d---kijezeba.pdf
- http://amon-syotengai.com/userfiles/file/66498901573.pdf
- http://maekalocal.com/Maeka/UserFiles/File/wobenexerezabobedis.pdf
- http://winfielddeli.com/ckfinder/userfiles/files/dikajokativigat.pdf
- https://armandofalconi.net/userfiles/file/gagepukazuliv.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16073724088da3---gedufezulatarur.pdf
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/0t60o0vjbavm22hbelmr1mq0b9/gafadesudogom.pdf
- http://anhopphat.com/uploads/files/84310161638.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/4c28ad2f3d7b44bd36ca531e943091f0/99987001310.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/85d4d9125818a8f76c86a329ae78007b/malezemu.pdf
- http://richmore.kr/uploadfile/fckeditor/file/81959872402.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_off0000e9d8.binebe51287e6ac835e276b790280da5bce712f50403e19106faa76d3ffea84823d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D8 | 10856 bytes |
font_01_sfnt_off000102a9.bin102e70437e684777c10b186c9741ce1e20963d7ddf468b9c09ca687afe9108d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102A9 | 16612 bytes |
font_02_sfnt_off00012daf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DAF | 16792 bytes |
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