MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the execution of malicious code or redirects the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://catamma.ru/uplcv?utm_term=add+shortcuts+to+chrome PDF link annotation
- http://demkapi.com/resimler/files/59543220157.pdfIn PDF document text
- http://darangyi.com/userData/board/file/19118123512.pdfIn PDF document text
- http://medianet2000.net/amm_prod/image_news_popup/file/xedigiragubodeloko.pdfIn PDF document text
- http://ramenzoni.eu/userfiles/files/42005657204.pdfIn PDF document text
- http://shbaicun.com/userfiles/file/2021091010110773499.pdfIn PDF document text
- http://www.stsmcc.org/www/js/ckfinder/userfiles/files/93118768082.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/bidup.pdfIn PDF document text
- http://isotope3.pm-ural.com/uploads/files/37381025152.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/90274489959.pdfIn PDF document text
- https://resulgame.com/calisma2/files/uploads/luzoluburowar.pdfIn PDF document text
- http://robotsuk.com/luckingbros.co.uk/userfiles/files/83118544968.pdfIn PDF document text
- http://aokunoil.com/ckfinder/userfiles/files/fibal.pdfIn PDF document text
- http://ljjxmining.com/uploadfile/file///2021092005442746.pdfIn PDF document text
- https://meritumptt.pl/dokumenty/file/12836114243.pdfIn PDF document text
- http://holland-ex.com/images/blog/file/gegerubedekevopopi.pdfIn PDF document text
- https://noithatkuongthinh.com/uploads/files/24006430225.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/28177667307.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614389631e4c4---juxanem.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614e62b347553---tonope.pdfIn PDF document text
- http://busto-wl.gattinonimondodivacanze.it/themes/userfiles/files/35546371181.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/47182308895.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/85bb83f8a28fa7ae447e812bbd1230bd/43785747486.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_off0000aef5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEF5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c70c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC70C | 10312 bytes |
SHA-256: 8a5288726a685d4499837f771f3ae040415ecdf4e2ae0295dd53c7112ba19530 |
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font_02_sfnt_off0000de59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE59 | 15256 bytes |
SHA-256: 35d0f55aa5dcac35088b07cebad2f584fe01b7e47db9575159a330a18938fee9 |
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