MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism to external malicious sites. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports its role as a lure or distribution point.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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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://pistant.ru/uplcv?utm_term=on+dover+beach PDF link annotation
- http://bellamy.tw/uploads/files/202109151237456862.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/845f3b624eb8fc9a5b1e18fa3da3b9ca/66429264703.pdfIn PDF document text
- http://wx-bm.cn/upload/ckimg/files/202109180244144163.pdfIn PDF document text
- https://tigapilar.com/upload/files/kotefadarexokojitas.pdfIn PDF document text
- https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/fotoda.pdfIn PDF document text
- http://pure-chiral.com/upload/files/wepinutinarazun.pdfIn PDF document text
- http://optykglowacki.pl/obrazki/files/vegunenenipiranor.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109061944238565.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/nozumubiririkakaxadof.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613895068f30b---41536108477.pdfIn PDF document text
- https://kurek-rowery.pl/user_pict/file/vapagoxi.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/23397820583.pdfIn PDF document text
- http://misr-consult.com/userfiles/file/30753717688.pdfIn PDF document text
- https://frisch.ro/files/file/98673788834.pdfIn PDF document text
- http://inbjnews.com/data/cheditor/0603/files/32674473735.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/68627493986.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/bemivumemevo.pdfIn PDF document text
- https://drakbera.com/ckeditor/ckfinder/userfiles/files/19157234751.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/2b0df6ce630e72000fcedfcda6dec055/72365274055.pdfIn PDF document text
- http://crimesla.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rofelenejikurovokure.pdfIn PDF document text
- https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/34994803110.pdfIn PDF document text
- http://grafichesirio.com/userfiles/files/xaguriderezoga.pdfIn PDF document text
- http://biurod9.pl/public/userfiles/file/pexanixapub.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/migoginezulifobajo.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_off0000b364.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB364 | 10292 bytes |
SHA-256: 1f150f342bf89edf6e4364ec522cf16596aac4ebab354f75a3edae19bfe04665 |
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font_01_sfnt_off0000ca80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA80 | 15900 bytes |
SHA-256: fe9e6dcf6b9e64564ab9e11f4a82cb4adcb972836f4da51f32fc0d16958225ca |
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font_02_sfnt_off0000f2e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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