MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links, many of which point to compromised WordPress sites or disposable domains. This behavior is indicative of a link farm designed to manipulate search engine rankings or to serve as a distribution point for malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://synthecinter.com/userfiles/files/50309009877.pdf In PDF document text
- http://splogservice.ru/content/file/86721636091.pdfIn PDF document text
- https://nikosdimos.gr/userfiles/file/6721792552.pdfIn PDF document text
- http://enidbtwcreunion.com/clients/5/52/52e94d62e82ff66504c7d921fc07bf70/File/26741610612.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/dusujadobafujovomovuzile.pdfIn PDF document text
- https://dm288.com/slicice/file/33014628427.pdfIn PDF document text
- http://15thstpresbyterian.org/clients/d/d7/d7025cfb1d4df99eee5a588ecc3dd57f/File/64365707353.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb95281651---90330223427.pdfIn PDF document text
- http://lateonsettay-sachs.org/userfiles/file/60646303988.pdfIn PDF document text
- https://lesfeesdelhetre.fr/upload/files/dizisujifotuvepenig.pdfIn PDF document text
- http://mariamozharova.ru/uploads/files/3422693636.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/qgla9ltkgpuhueveto0c4r6ac1/23786705689.pdfIn PDF document text
- https://mps-india.com/userfiles/files/80482562672.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/00a6fbc1c58429bae4179e4a1cba2e9f/32947184104.pdfIn PDF document text
- https://lavineriablend.it/file/20511212365.pdfIn PDF document text
- https://rentcar888.com/uploads/files/202108240652305155.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc540dd243---94514759945.pdfIn PDF document text
- http://fdscience.com/UPFILE/userfiles/files/38990962274.pdfIn PDF document text
- https://autotronics.vn/userfiles/file/wofulumekevuz.pdfIn PDF document text
- https://zohopinler.com/calisma2/files/uploads/2933614629.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9577eaaf2e---94434861653.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abbfb0830de---20971291569.pdfIn PDF document text
- https://aiwatopup.com/ckfinder/userfiles/files/vijomog.pdfIn PDF document text
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/6f11ac064f618bc64d5894f8594d29b3/6868947007.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=dipiro+pharmacotherapy+handbook+pdf+free+downloadPDF 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_off0000bb72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB72 | 15816 bytes |
SHA-256: 976047a1eafae080cded72d3141a222ebbb3d2e098d1440c63a890f0d6ef14e9 |
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font_01_sfnt_off0000e44f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44F | 11148 bytes |
SHA-256: 634f4f099cea497b30e9625391cfbaa39df097626fe7c3f05f31ff50f2f19eb5 |
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font_02_sfnt_off0000fe0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE0F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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