MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains embedded JavaScript and multiple external URIs, including one pointing to 'catamma.ru'. The PDF is structured as an image-only lure, typical of phishing attempts, designed to trick users into clicking a link that redirects to a potentially harmful website.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=tool+skin+free+fire+diamond PDF link annotation
- https://remont-bez-zabot.ru/files/file/wotijerelirabe.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614777b28d336---nebigiritekoxujugaxi.pdfIn PDF document text
- http://rotang.net/userfiles/file/25511475203.pdfIn PDF document text
- http://em-ail.ch/pictures/2/91788291600.pdfIn PDF document text
- https://grootformaatspandoeken.nl/userfiles/file/kelajotafopibonoredijisum.pdfIn PDF document text
- http://kiapelhrimov.cz/UserFiles/File/jufirokozo.pdfIn PDF document text
- http://enslev-anlaegsservice.dk/userfiles/file/15420816103.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/mawigopozikat.pdfIn PDF document text
- http://identik.hu/editor_up/74996028079.pdfIn PDF document text
- https://windsbs.biz/files/file/zozagoxomobabum.pdfIn PDF document text
- https://rdsdealers.com/ckfinder/userfiles/files/vaxebuvagakatilekudegik.pdfIn PDF document text
- https://ritascreation.com/userfiles/file/tokusewanekadozigiduge.pdfIn PDF document text
- https://sydneystudytour.com/accounting/userfiles/file/83159639180.pdfIn PDF document text
- http://uran-berlin.com/userfiles/file/47518770270.pdfIn PDF document text
- https://rjpexport.com/files/53676116337.pdfIn PDF document text
- http://orthopediedelft.eu/files/bipazotofabaneda.pdfIn PDF document text
- http://volvo-cars.jp/js/upload/files/49274387821.pdfIn PDF document text
- http://yansyuan.com/UserFiles/images/files/31663481723.pdfIn PDF document text
- http://kehlux.lu/userfiles/files/61460209373.pdfIn PDF document text
- https://sangolongphuong.vn/longphuong/news/files/23949327019.pdfIn PDF document text
- http://bitite.lv/media/txt/122/file/rotokuniwinegesisumubegor.pdfIn PDF document text
- https://adian.eus/files/galeria/files/19456954482.pdfIn PDF document text
- http://to-kajihan.net/js/upload/files/32744676886.pdfIn PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/pisuboses.pdfIn PDF document text
- http://alituncer.net/userfiles/file/37634250750.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_off0000b22c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB22C | 10472 bytes |
SHA-256: 49d3d701f3aadb745d57587fc59228851be2914ddae2c843184735dba4550d62 |
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font_01_sfnt_off0000c9e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E4 | 14208 bytes |
SHA-256: 2bf281df62326b73fdbbc69efdfb2bb7fe3695e77448c1ca20cc68baaa7bcaab |
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font_02_sfnt_off0000eda7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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