MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. The heuristic 'SE_BROWSER_INSTALL_LURE' suggests the document is designed to trick users into installing malicious software by posing as a necessary browser update or extension. Numerous external URLs were extracted, indicating a potential distribution or command-and-control infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://laborke.ru/uplcv?utm_term=screen+recording+for+mobile PDF link annotation
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/77707417271.pdfIn PDF document text
- http://elitacasa.it/images/file/57886104171.pdfIn PDF document text
- https://actorconseil.com/files/file/kaporujetigulaluduwexida.pdfIn PDF document text
- http://alrabbanoilandgas.com/file/files/69562288908.pdfIn PDF document text
- http://skonasystems.com/userfiles/file/34319323773.pdfIn PDF document text
- http://marathon-gexin.com/Uploadfiles/files/82452788443.pdfIn PDF document text
- http://epwuae.com/userfiles/file/naxelusubiralunewub.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/54cf5cda0f5b1217549a453ca65cfbc1/99229443069.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/tiliwapar.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/64177851402.pdfIn PDF document text
- http://wadirumshootingstars.com/userfiles/file///7245787061.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/46723039181.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/botofuvekovejipezemuxum.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/mefurejimamanozukefuzizo.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16143cb0bd1184---63533258193.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/lakimixob.pdfIn PDF document text
- https://ijfbacknumber.com/editor_up/rimixafusimamakuw.pdfIn PDF document text
- https://monyetmesum.com/contents/files/77392210353.pdfIn PDF document text
- https://sibiucuratenie.ro/fckeditor/userfiles/file/61376945373.pdfIn PDF document text
- https://himalayanwanderer.com/himalayan/userfiles/files/1045763023.pdfIn PDF document text
- https://ibericadearmerias.com/file/48282052835.pdfIn PDF document text
- http://sochisushi.nl/survey/userfiles/files/mudebi.pdfIn PDF document text
- http://rudolphalexander.com/uploads/files/jovotisenokiviposab.pdfIn PDF document text
- http://fabiocaronearchitetto.com/userfiles/files/76458220504.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_off0000e695.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE695 | 17528 bytes |
SHA-256: 29f63cf80f9edf500aeb8c9e5626d6ca5e31710ea5855b5e44c85c25632b6594 |
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font_01_sfnt_off0001142e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1142E | 10604 bytes |
SHA-256: 37dfa9ddcb49407b1331cba0ef67497afc4a53674ba108244c3b41cb6ecc0982 |
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font_02_sfnt_off00012c19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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