MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to PDF files hosted on various domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates that this is a link farm on disposable hosting, suggesting a malicious intent to distribute further content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c63198cfdc---42829566839.pdf In PDF document text
- https://wanna-drive.nl/files/File/18945503038.pdfIn PDF document text
- http://karaokejdi.com/ckfinder/core/connector/php/upload/files/kixibumudiputezijege.pdfIn PDF document text
- http://lamelove-zakryti.cz/userfiles/file/2214223314.pdfIn PDF document text
- http://scuolascifondocortinadolomiti.it/userfiles/files/gubuwekiminefizedi.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b03e6e4588---fegupezunesozeluxutikumit.pdfIn PDF document text
- https://simondaulte.com/ckfinder/userfiles/files/fibojo.pdfIn PDF document text
- https://kamwalibais.com/userfiles/file/31181746452.pdfIn PDF document text
- http://gaudi.tw/upload/files/54138586232.pdfIn PDF document text
- https://bisleriuber.genefied.co/ckfinder/userfiles/files/37548470313.pdfIn PDF document text
- https://saigonservices.vn/images/uploads/files/82856681428.pdfIn PDF document text
- http://tehpromyar.ru/media/file/28179358238.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/tediwumutigefefijeveras.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/xaturufidozizulebuluxa.pdfIn PDF document text
- https://ever-progress.com/upload/files/gutesijotifos.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/b83c8a40e874909d57733e37d5fd3f80/79053075851.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16140e4ee0ce07---90869976577.pdfIn PDF document text
- http://madmojo.com/fckupload/file/25676030674.pdfIn PDF document text
- https://acrgruppe.de/userfiles/file/91862477147.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd0fcb43aa---37891710828.pdfIn PDF document text
- https://dsverano.com/UserFiles/File/xegulemojamimudesazenar.pdfIn PDF document text
- https://ofly.om-digitalsolutions.cn/upload/files/kuxoxe.pdfIn PDF document text
- http://nriloan.jctoursandtravels.in/files/gugamolifofotexazositu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=lehninger+8th+edition+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_off0000d993.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD993 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A5 | 16944 bytes |
SHA-256: b00c71cb221b63edda6a4044eb89c69ed75c2d80d08358625be77c876d60f88f |
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font_02_sfnt_off00011d5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D5A | 10564 bytes |
SHA-256: 2f673e4787ca0fb1233ec8143bd3fae2d487dd3ad062b6fb03c90a76e9c4c436 |
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