MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, indicating malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests the document's purpose is to host a collection of links on disposable domains, likely for phishing or distributing further malware. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://coretry.ru/uplcv?utm_term=best+polaroid+app+for+android PDF link annotation
- http://tipkeo.com/js/ckfinder/userfiles/files/15259019295.pdfIn PDF document text
- https://matharu.ae/userfiles/file/73632809599.pdfIn PDF document text
- http://lexxyin.net/files/fckeditor/file/34349958122.pdfIn PDF document text
- http://milwaukee.center/userfiles/file/podiloporidifotokubonux.pdfIn PDF document text
- http://gtlmarinefuel.com/userfiles/file/sawobalizir.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/93589612343.pdfIn PDF document text
- http://www.prieteniitehnicii.ro/documente/file/98238619812.pdfIn PDF document text
- http://neonatal-surgery.ru/userfiles/files/lomumixiwa.pdfIn PDF document text
- http://op-gold.com/ck_image/files/zofajiv.pdfIn PDF document text
- https://avphunter.ro/ckfinder/userfiles/files/39511884548.pdfIn PDF document text
- http://hmsendo.pl/uploads/editor/file/88898197760.pdfIn PDF document text
- http://tiszaikaland.hu/upload/file/dikonimuwugodaja.pdfIn PDF document text
- https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/32126194833.pdfIn PDF document text
- http://www.bluefashion.cz/ckfinder/userfiles/files/bepinevi.pdfIn PDF document text
- http://dhf-china.com/d/files/12124666273.pdfIn PDF document text
- http://microsolder.hu/userfiles/files/19757799694.pdfIn PDF document text
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/985621413.pdfIn PDF document text
- http://multi-accueil.fr/ressource/site-image/files/kajunapas.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/f8iq8cadeqmlr0m58h8te0lurv/fibodanogejaxe.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/nitup.pdfIn PDF document text
- http://turatabor.hu/media/lodurezefiru.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ovhd1974un1bajc66ro49blsg1/ruzojufibirinaxuzores.pdfIn PDF document text
- http://www.atsamuihaus.com/image/upload/File/gemizuf.pdfIn PDF document text
- https://freeunlock.com/uploads/file/55930582210.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1631388708.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_off0000af2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF2B | 15128 bytes |
SHA-256: 545eced132796c5b8f73f0eb5da6d9d5e1dcb8b7328ee0570469e46b1365c013 |
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font_01_sfnt_off0000d572.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD572 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED89 | 10544 bytes |
SHA-256: 5af8fb45c86f25f010da896049287ee2b5e3cc0ed07eae1abac2fd1c004cd8d0 |
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