MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. It also features numerous external URIs, many of which are part of a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://archism.ru/uplcv?utm_term=story+of+my+experiments+with+truth+pdf PDF link annotation
- http://zvezda-rostov.ru/ckfinder/userfiles/files/vifipuvu.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/ponagola.pdfIn PDF document text
- https://taksis.lv/taksis/userfiles/file/vomeputofamukawogigaza.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/xawutovepadoluvegi.pdfIn PDF document text
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/nenafaxedirekowa.pdfIn PDF document text
- https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/jazotarujenaxojitanex.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca8ce44e46---vexurajewox.pdfIn PDF document text
- http://bociany.sk/media/file/65728407183.pdfIn PDF document text
- http://park-seversk.ru/other/js/ckfinder/userfiles/files/75166196384.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/98186465348.pdfIn PDF document text
- https://bor-diing.com/upload/files/55266192776.pdfIn PDF document text
- https://www.khaosanpools.org/ckfinder/userfiles/files/41099225994.pdfIn PDF document text
- https://mavachhaiphong.com/upload/files/99337593092.pdfIn PDF document text
- https://next-engineering.com/userfiles/files/72782735024.pdfIn PDF document text
- http://rasmesafar.net/basefile/basefiles/37216234119.pdfIn PDF document text
- http://old.smartplus.pl/ckfinder/userfiles/files/23062536300.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec44e0dc6d---bulogeruru.pdfIn PDF document text
- https://ski-valloire.com/ckfinder/userfiles/files/jemisu.pdfIn PDF document text
- http://rancholasmonturaspremios.com/campannas/file/robuji.pdfIn PDF document text
- http://aviafond.ru/userfiles/file/jimazaridolopogejox.pdfIn PDF document text
- http://iraneto.com/basefile/iranetocom/files/93876996448.pdfIn PDF document text
- https://ekransamara.ru/files/ripabibejozifasuxix.pdfIn PDF document text
- http://autohondl.cz/userfiles/file/zobesugetunaladozoxowatiw.pdfIn PDF document text
- http://spc1991.com/ckfinder/userfiles/files/58918975442.pdfIn PDF document text
- http://freeorden.com/media/file/54906933064.pdfIn PDF document text
- http://yossy.biz/userfiles/file/45654594015.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_off0000c28d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC28D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000daa4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAA4 | 11032 bytes |
SHA-256: 6913537f77298ff7b85b2cdf90978f47941a101453033e9e34f0b38ce72ba951 |
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font_02_sfnt_off0000f42c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF42C | 17872 bytes |
SHA-256: 9291d1462d155fc56a2947606e1506cb0a4591c624eba0a82080c980ae03ddbf |
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