MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. Heuristics indicate urgency lures and download button elements, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of embedded JavaScript to redirect the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=assassin%27s+creed+revelations+android PDF link annotation
- https://nomortiga.com/contents/files/48667650111.pdfIn PDF document text
- http://eta-aus.org/userfiles/file/20210901160639.pdfIn PDF document text
- http://laduses.nl/image/file/92215167079.pdfIn PDF document text
- http://faithleader.org/js/ckfinder/userfiles/files/wufatikuwu.pdfIn PDF document text
- http://sonhanint.com/uploadpic/sun/files/202109010730256465.pdfIn PDF document text
- https://tipresentoio.it/images/file/masaxedofura.pdfIn PDF document text
- http://alwaysshine.com/fileimage/file/sidosumogi.pdfIn PDF document text
- http://csc-0411.com/userfiles/file/20210909081959_hiwlfk.pdfIn PDF document text
- https://hotelmitrutarija.com/uploaded/files/vaminozubonigarepa.pdfIn PDF document text
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/80528889012.pdfIn PDF document text
- http://sujitonweb.com/userfiles/files/60786723741.pdfIn PDF document text
- http://progetec.org/userfiles/files/90107366258.pdfIn PDF document text
- http://the-bom.kr/upfile/files/bilegekotimike.pdfIn PDF document text
- https://svltv.in/userfiles/files/luzewobaj.pdfIn PDF document text
- http://autofactory-jin.com/js/upload/files/mevipimomodi.pdfIn PDF document text
- https://estudiowebcolombia.com/ckfinder/userfiles/files/tawenadobivemasewejuvus.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/43073205083.pdfIn PDF document text
- https://www.douggoodkin.com/admin/ckfinder/userfiles/files/liwumewoxilosuv.pdfIn PDF document text
- https://ms2gacor.com/contents/files/xogawatizosawu.pdfIn PDF document text
- https://hogies.com/includes/template/uploads/file/20632775663.pdfIn PDF document text
- http://medica-brno.com/files/93020287326.pdfIn PDF document text
- http://secretinvitation.net/images/files/98282048060.pdfIn PDF document text
- http://tetrafluoro.com/upload/files/85490582604.pdfIn PDF document text
- http://ristorantebiscione.com/userfiles/files/23478279537.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_off0000d74c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD74C | 10444 bytes |
SHA-256: 314041b21afd1cf08f2c88499c7fde66201f49ca2aecb959f85d3d9533e28c4a |
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font_01_sfnt_off0000ef36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF36 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010748.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10748 | 18548 bytes |
SHA-256: f40fd2db466b52d9ca1040fbed72af964a8595d1fa074b92340c4e4fd6047a51 |
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