MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised CMS uploads and disposable hosting domains, indicating a link farm designed to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment that it is part of a phishing or malware distribution campaign. No scripts were extracted, but the presence of multiple suspicious URLs is the primary indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 5
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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 http://syuncyoku.jp/upload/file/nawifarurusunezadubif.pdf In PDF document text
- http://bjsprt.com/uploadfile/file///2021052501505696.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/it87jto819nauu0j0gd75bg4c0/mexuvafimar.pdfIn PDF document text
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160779fb531f9d---95520551660.pdfIn PDF document text
- https://an-professional.ru/img/files/file/4156536541.pdfIn PDF document text
- https://alkirbilaw.com/userfiles/files/80153926923.pdfIn PDF document text
- https://bulgariapools.com/contents//files/97305514870.pdfIn PDF document text
- http://webursitet.org/Files/file/34137372608.pdfIn PDF document text
- http://eurekaelearning.com/upload/news/file/jorik.pdfIn PDF document text
- http://spoilersmensgolfclub.com/clients/865201/File/92074941910.pdfIn PDF document text
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/0453f5bad8334ba76cae16d23076ea1f/65249745123.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607665a02e3d4---8427643978.pdfIn PDF document text
- http://www.trafikyaren.com/wp-content/plugins/super-forms/uploads/php/files/q4k433sgo7tv0m1n4uherlbgm2/sasibufujigite.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/42528315986.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/86d329fb0d56a40c0d0da23b1f65f316/98838136492.pdfIn PDF document text
- http://amexeuro.com/an3_Uploads/file/gorigiwadifa.pdfIn PDF document text
- http://birzebbugastpetersfc.com/files/file/rorozumopizamafufeb.pdfIn PDF document text
- http://mini-garden.ru/userfiles/file/87160359982.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/45caa1074b93817c86593ccf0df15ccb/78181139416.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c42b465abd---36235436254.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/fa143b5e01ab67bf0777e61ed3ddc139/wukeseputepurilifa.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607584056e166---lebopenepewutizovisit.pdfIn PDF document text
- http://igigeothermal.jp/userfiles/file/1059234673.pdfIn PDF document text
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/5a80daeb15e0f23b5cad55ec876568ae/noxuzepuropiraxamaruniz.pdfIn PDF document text
- http://hodori247.com/uploads/files/14469563851.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/9fba392c165dd4c3c0108e7a47644bb3/guvipowapekalamajujub.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=finite+elements+and+approximation+zienkiewicz+pdfPDF 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_off0000deb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEB8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f6ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6CA | 17500 bytes |
SHA-256: 2484d05c223375294feaf79f533562a34d47793369e75a54f788a3e77c247a9b |
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font_02_sfnt_off0001249a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1249A | 11096 bytes |
SHA-256: aa866a1a8925d6b02129c7fcbd1735c67e6c05327910785ba4dce2179bb3ff34 |
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