MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a high number of external links, many pointing to compromised WordPress sites, suggesting a link farm or SEO poisoning attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
Heuristics 6
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/sh0cn8pb0jf27f26d515f509gq/91895298567.pdf In PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/4c2fiohqfr8r4udl3f298gp6l6/87609554467.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/76ce688009661fcc903ad1d5f72d525a/kusof.pdfIn PDF document text
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/3a1cc89dd7894a1c4d150c07361054c9/65856645722.pdfIn PDF document text
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/e0f24b6efca868ff63d52155598d5094/47591730502.pdfIn PDF document text
- http://biosite.ru/images/news/file/duguranivinokejawufatozif.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce14a10973---86374721015.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071014c90743---tizetiwomoxev.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b5537941327---88253687514.pdfIn PDF document text
- http://macautemple.com/userfiles/file/xutumifatuvedig.pdfIn PDF document text
- http://zcapitalcrm.com/app/webroot/uploads/files/zagufejokuvodubijexoxe.pdfIn PDF document text
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/8ln95atg6k20r4ainkmaojf8vo/gedibamoxinagawaxu.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/1c86cc8e8c9a760d7960b53d9260cd27/50487159285.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160905bbf44773---rapabumipitopekagef.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/kinorubaxutenobis.pdfIn PDF document text
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/qtb6b2dvp7kqrvo4hmdec50l31/pinewadesiferawedoravar.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/6ba0a2b255767e4fa157fe687fc61bc0/gudopuvopab.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6577c8c51---70343691429.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160810043353fa---vibobixovejovuzef.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d53aeeb590---viwekolakise.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/4b97014a84d4c11385de92b4c7faa3bb/46469484603.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/leio8c4uau2dehfqc1adluj6qc/pajikire.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/901c608dd626bfd2dd09f6b12a735175/xalevanafi.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f40026e58---72099584132.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/45sshonrtmgrlq65k4hbcvq1b2/wimex.pdfIn PDF document text
- http://g-shocktou.com/user_file/file/70063233663.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/558e855f1e5e3965e97c03ff324e6833/70985654565.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=uk+bank+holidays+august+2020PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- 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_off0000f584.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF584 | 17368 bytes |
SHA-256: 4891f20cfcb9cf8ade3cfa02fb48e7b23a7a3f544f08dde1950385f0cbdb9fa8 |
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font_01_sfnt_off00012329.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12329 | 10988 bytes |
SHA-256: ca4b5b1d4344cff8099bbbd5ab80d6e5b54d644da8382a0d02a843972ac5db90 |
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font_02_sfnt_off00013c7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C7B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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