MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to domains that appear to be disposable or compromised, suggesting a link farm designed to lure users to malicious sites. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF-specific heuristics related to link farms and compromised CMS uploads supports this assessment. No scripts were extracted, but the overall structure points to a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 https://pixomot.ru/uplcv?utm_term=amaranthaceae+lower+classifications PDF link annotation
- http://floral-design-lindgens.de/userfiles/file/vafafurinibuzudokasizu.pdfIn PDF document text
- http://lmtechsolution.com/userfiles/gusisolalozusomil.pdfIn PDF document text
- http://banglenhospital.com/UserFiles/File/21923876335.pdfIn PDF document text
- http://ecoevopublisher.com/files/upfiles/file/51578414466.pdfIn PDF document text
- https://bem-sa.com/img/file/80416547740.pdfIn PDF document text
- http://csc0851.com/userfiles/file/20210911031104_1gem6a.pdfIn PDF document text
- http://ttccid.com/userfiles/files/lilukaloposemizebufidape.pdfIn PDF document text
- http://daiichilogistics.com/uploads/news_file/lametuxazulo.pdfIn PDF document text
- http://portableandcool.com/files/files/kuwesiluzumok.pdfIn PDF document text
- https://sergiomauri.com/images/file/78486486183.pdfIn PDF document text
- http://gddfboiler.com/uploads/files/zujazogezumugam.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/75477134186.pdfIn PDF document text
- http://articolo17.it/siti/usr/foto/files/10463483077.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613f125723678---70995505027.pdfIn PDF document text
- http://aktifimmo.lu/userfiles/files/lanixinuxinov.pdfIn PDF document text
- http://winso.tw/userfiles/file/tenuzeveduzobiriwosan.pdfIn PDF document text
- http://brenderup.ro/mm/file/vejopurawaxuzefalogelorip.pdfIn PDF document text
- https://kodcomputers.ro/2664/uploads/sekowekaxapowejupiluv.pdfIn PDF document text
- http://cck-brno.cz/ckfinder/userfiles/files/rawujujonojigakexowi.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/26cc73fc8dcdc0f1ddc441f02c1baa62/18557485845.pdfIn PDF document text
- http://electronicaindex.nl/images/uploads/17554527807.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/80964380428.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/5037ca92263ddc1772ce891a7c9c8069/95410613724.pdfIn PDF document text
- http://poliinc.com/upload/files/59637858788.pdfIn PDF document text
- 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_off00011d3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D3E | 20508 bytes |
SHA-256: 4c5c6ae2180b8d81a0e5e7e5e2dec68d094108adc44e2bf22128cb0c6e34b4f1 |
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font_01_sfnt_off00015302.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15302 | 10668 bytes |
SHA-256: 8fc0f831b345174729dddb37db59c4ebfd721bd444d89a428927f7edf574e6da |
|||
font_02_sfnt_off00016b51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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