MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or are part of a link farm designed for SEO manipulation. The ML classifier strongly indicates maliciousness, and the presence of links to potentially compromised CMS uploads suggests a malicious intent to host or redirect to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://noxsun.com/jingkelun/userfiles/files/20210913095125.pdf In PDF document text
- http://pivotal-technologies.com/userfiles/file/zagimuzesabikuvufewawudos.pdfIn PDF document text
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/genaketaxivugusawile.pdfIn PDF document text
- http://portableandcool.com/files/files/dasogufajovebutesogum.pdfIn PDF document text
- http://55pluscommunityspecialist.com/userfiles/files/revabirizazenexiz.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/67576518852.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134d25c89ddb---61952937075.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/ed369f442be0e9890ff295fad150c301/tilukemaxudadagapake.pdfIn PDF document text
- https://maychieuvinh.vn/upload/files/3475632956.pdfIn PDF document text
- https://jager-ig.tw/up_photo/file/98661677000.pdfIn PDF document text
- https://nakatarikaszel.pl/app/webroot/userfiles/file/wesujejuketuwezifekiz.pdfIn PDF document text
- http://qianxish.com/ckfind_image/files/kexabip.pdfIn PDF document text
- http://misosmile.com/upload/editor/files/31681305427.pdfIn PDF document text
- http://poslovniimenik.net/firme_data/files/mapuwezibumapikaw.pdfIn PDF document text
- http://rideabikenews.com/user_img/files/9693919244.pdfIn PDF document text
- http://vpsystem.com/files/fck/35301609715.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/84824771483.pdfIn PDF document text
- http://theofficefurniturestore.com/ckfinder/userfiles/files/jivilixupuberovalelinubam.pdfIn PDF document text
- http://charivne.info/images/file/foduwapumerifeposoxofuveg.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/b767a85dac83fc014800e484266ec8db/bulenofegaradipefu.pdfIn PDF document text
- https://ltssinternational.com/res/wysiwyg/file/bupoxuzomajejijenofagif.pdfIn PDF document text
- http://damutech.kz/upload/2021/09files/210914052219308306vkyis.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eaf096a52c---loriwatexupezunom.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=lulubox+apk+download+free+firePDF 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_off0000defb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f712.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF712 | 10704 bytes |
SHA-256: 45f59c698536b07423c1f7012a40668f9de22dfe405e87b1dce8cce2d3dbf574 |
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font_02_sfnt_off00010f85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F85 | 17108 bytes |
SHA-256: 37f964fa86d68eafa3861e4bfb970cbcc2ec4ee79fcba0030d766c07d56509a1 |
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