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 WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a phishing lure or a distribution point for further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.6537
Heuristics 7
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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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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/aejroo1edvgv6f4ldohveeuhvb/juxuxap.pdf In PDF document text
- http://zhodnoceni-penez.cz/is/images/FCKeditor/File/sulovozu.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/10584442943.pdfIn PDF document text
- http://gugugroup.com/userfiles/difopodififabikoxenajisul.pdfIn PDF document text
- https://ph2020.org/FCKeditor/file/tufejonoluvem.pdfIn PDF document text
- http://thaoduocvn.com/userfiles/image/file/fupilovigilifanerabebud.pdfIn PDF document text
- http://monarchiaerembolt.hu/tmp/rivokopezake.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613ee8ebd6f7f---91806165729.pdfIn PDF document text
- https://calmoinc.com/upload/editor/file/sasifadametuzivam.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4a723514c---16026066253.pdfIn PDF document text
- http://ameshamagazine.com/js/upload/files/pivivifuriwunanejum.pdfIn PDF document text
- http://kanomax-nsk.ru/images/fuvopubemuxadesegomud.pdfIn PDF document text
- https://longislandinvestmentadvisors.com/nini/userfiles/file/vorusafefereke.pdfIn PDF document text
- http://youngshiny.com/userfiles/file/1630550276.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/88239283849.pdfIn PDF document text
- https://perfecthospitals.com/ckfinder/userfiles/files/lobef.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210906113037751666823.pdfIn PDF document text
- https://amadesafar.ir/basefile/amadesafarir/files/62055614492.pdfIn PDF document text
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/12064453092.pdfIn PDF document text
- http://patrick-jardinage.fr/ckfinder/userfiles/files/renexepewozoderozetabiko.pdfIn PDF document text
- http://thienminhgroup.com/uploads/userfiles/file/64956364294.pdfIn PDF document text
- http://potlista.com/file/files/87671766304.pdfIn PDF document text
- http://nachhilfeschule.havonix.com/ckfinder/userfiles/files/gunilel.pdfIn PDF document text
- http://conganbacgiang.vn/app/webroot/uploads/files/wufukilefonigek.pdfIn PDF document text
- https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/tabixonufu.pdfIn PDF document text
- http://fotografieindex.nl/images/uploads/bejorozozixebakumulalipu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=exercises+will+and+going+to+pdfPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bfc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFC3 | 16368 bytes |
SHA-256: 8019ea5cd07419f1c7e197763c1f7f2020f1c5fc171a43a3eeaaa55b046dcfa9 |
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font_01_sfnt_off0000e9d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D6 | 10964 bytes |
SHA-256: 7e7ab49a95e79e40f935952946d7f84d7d641382ff684803b1b8ba35c4880f67 |
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font_02_sfnt_off0001034a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1034A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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