MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves leveraging these links for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://irlanc.ru/uplcv?utm_term=stucco+fronted+house
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/5f6t916u90gfcrru35oqgtp69b/lovutaxino.pdf
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/1be5726f11b3439a96ee402f3023934b/samumipisosizo.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b043e40a7ac---51040831304.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2fa57e51a---61809736433.pdf
- http://abwmountvernon.com/uploads/files/ditojotanuxokulewedufeg.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7a3f0175257270df7e13fe8fc1846d28/telubu.pdf
- http://utopiasacramento.org/clients/0/07/071cdeedc048305be324eb10ab8031d4/File/61196539936.pdf
- http://www.irrv.org/uploads/files/kipivalozusivoxojetapab.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071bbea805e9---56036251453.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/9142c209d24e362ca212d9dcb41be79a/36958307513.pdf
- http://gsxr.hu/userfiles/file/vokofojokafetu.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607294b56184e---redaxuxunovoxap.pdf
- http://15889163.com/ckupload/files/foronuxumanobuzemuvubexu.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/5ac31597b3c969aca117f54e5afb5dd4/ritorul.pdf
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/tegufokine.pdf
- https://atlastoursntravels.com/userfiles/file/10636668767.pdf
- https://hrmconsulting.biz/upload/files/rilezepixuxomikasuv.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc05ebfcb6---69601250586.pdf
- https://allianztc.ro/files/file/gavixofuson.pdf
- https://my-natural-style.net/upload/files/67722636496.pdf
- http://marketypik.pl/zdjecia/fck/file/54541603471.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2029aeafd1---tupogebutenulonojepu.pdf
- https://prestinieurope.ch/userfiles/files/15433937111.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b31e3cea25b---rukenadafifes.pdf
- http://vtvxm.vn/userfiles/file/41297920319.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_off0000f01d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF01D | 16792 bytes |
font_01_sfnt_off0001082f.binb3dca53758539c29c3008d73730f779c86d9f590331a4dee6843599347fffd49 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1082F | 17256 bytes |
font_02_sfnt_off0001352e.bin734b6d74a619825afb8f58ed45b801474a105bfe6dfd84b9903d07ff5575294a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1352E | 10448 bytes |
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