MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document employs a social engineering tactic, specifically a browser extension or update installation lure, to trick the user into executing malicious code. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of numerous external URLs, some hosted on compromised CMS uploads, suggests a downloader or redirector pattern. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, indicating it's not meant for direct user reading but rather to facilitate the lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.7665
Heuristics 5
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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://catamma.ru/uplcv?utm_term=ansys+workbench+meshing+manual PDF link annotation
- http://ypperfect.com/ckfinder/userfiles/files/43599104408.pdfIn PDF document text
- http://ddservice-bmw.pl/userfiles/file/ruguxebijudavewakud.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/72821044061.pdfIn PDF document text
- http://www.tsahimmongol.com/uploads/images/files/pagivosa.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8cc76e64b3---mazelelurapanomunurakuwo.pdfIn PDF document text
- http://andlupa.com/userfiles/file/21635626435.pdfIn PDF document text
- http://yjsyrj.com/userfiles/file/gorazawibego.pdfIn PDF document text
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/fopojabozogumuvuropagotiv.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/takn1b30scbi0apt5rl7d4fhkn/6458505705.pdfIn PDF document text
- http://lactopad.com/uploads/files/difumozenonifozes.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b885476b64b---pililaroveweluvirig.pdfIn PDF document text
- http://xhzhengli.com/upload/41494949378.pdfIn PDF document text
- http://sacoorhealth.pt/site/upload/file/90822665814.pdfIn PDF document text
- http://baybayankaauamo.com/clients/c/c9/c9e0f772d4a556598cfa564a27137582/File/dijumanujevi.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caf7e9e288---24287815638.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b1bbc34df4e---sijedegujawobetimunumow.pdfIn PDF document text
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/02779ae18323351cfea26c43d773b820/ronazajakularemuzumiwew.pdfIn PDF document text
- http://superfishinglewood.com/uploads/files/borigu.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ccee7c704d---pinefuziluseluxiluguri.pdfIn PDF document text
- http://hogan1973.com/clients/d/d4/d4eda5e2427b34f3a15374adde9a77da/File/73619024795.pdfIn PDF document text
- http://orkoien.com/userfiles/files/zofigizejojukeripumon.pdfIn PDF document text
- http://vaynhe.com/upload/files/18527667747.pdfIn PDF document text
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/fa145846b125094785cef7d91aabeb01/40577024660.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/16640872723.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/jesevav.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_off0006724b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6724B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00068a5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68A5D | 20604 bytes |
SHA-256: 068d1e8467b6ec668163ede9bde7b01bdb2f43946ffe2f0c6716488554de8d5b |
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font_02_sfnt_off0006c01d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C01D | 11092 bytes |
SHA-256: b920b5245b46638c94dff2a9174e1fb1ccf694d937811facde6831fc900863c7 |
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