MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to potentially compromised WordPress sites or disposable hosting. These URLs likely serve as a link farm to redirect users to malicious content or further stages of an attack. The ML classifier strongly indicated maliciousness, supporting the interpretation of this PDF as a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://medvor.ru/uplcv?utm_term=adobe+pdf+reader+mobile+application PDF link annotation
- http://vstarmp.cn/upload/files/20210901_121430.pdfIn PDF document text
- http://fslawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tolifukegusuxekadinodubej.pdfIn PDF document text
- https://alhurwallpaper.com/Files/files/74133506723.pdfIn PDF document text
- http://a-aqua.fr/ressource/site-image/files/xudipelepuvizezo.pdfIn PDF document text
- http://abcbyspu.com/ckfinder/images_store/files/juruj.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/31e213752254cbd62af198e7de74d963/72637578280.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/16499052074.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/fb8959db169c537a66a7e40e06fa9492/22717164274.pdfIn PDF document text
- http://binhchuachay.info/Images_upload/files/bavebedilaneledotil.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/19563255353.pdfIn PDF document text
- http://diagnosticaedilizia.com/userfiles/files/mazow.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/29247159784.pdfIn PDF document text
- https://es21sys.com/userfiles/file/75813960727.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16134b7bcdf02c---50237975375.pdfIn PDF document text
- https://fuze-pay.com/ckfinder/userfiles/files/23974419925.pdfIn PDF document text
- https://artasedanasingaraja.com/uploadfck/file/botisisefazatibafo.pdfIn PDF document text
- http://reyazahmad.bscsaoner.in/ckfinder/userfiles/files/7411118402.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/e40e3bb5464f08d47a8ed226f9e81dc3/biwopivotazosiziwa.pdfIn PDF document text
- http://abc-tel.ru/data/File/20885165101.pdfIn PDF document text
- http://martonaroniskola.net/userfiles/file/24806022922.pdfIn PDF document text
- http://acm-medicali.it/userfiles/files/70794726944.pdfIn PDF document text
- https://mmszke.hu/files/file/pesuwupetigis.pdfIn PDF document text
- http://koszyczarek.pl/userfiles/file/50965067796.pdfIn PDF document text
- https://777mto.info/contents/files/2888632878.pdfIn PDF document text
- http://fmmvn.net/userfiles/files/88329279651.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_off0000f210.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF210 | 10732 bytes |
SHA-256: 769a2bc960d38e9fadf6026c1b8f2a80823c7f17ab6fca4781ed6b76763a8bb6 |
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font_01_sfnt_off00010a6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A6F | 17664 bytes |
SHA-256: 3bd7455b722ea11863d9db7ec67e73f0bab8beaf374aaa6901a2f9c68aba0918 |
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font_02_sfnt_off0001381a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1381A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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