MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://irlanc.ru/uplcv?utm_term=filipino+martial+culture+pdf PDF link annotation
- https://csp-pub.com/stockages/files/44631979508.pdfIn PDF document text
- http://dedanskecasinoer.dk/userfiles/file/70046230272.pdfIn PDF document text
- http://daiichibus.vn/uploads/news_file/mijeditalemobipebomirov.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/7769a7ca8740e449f0e4f5d2693c22a7/80653129267.pdfIn PDF document text
- http://strandedtattoo.com/file/54425848432.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/0974ef18b91e594d58abd7e60bc4e35b/87512955251.pdfIn PDF document text
- http://zhansq.cn/upload/file/mipimopigazak.pdfIn PDF document text
- http://www.polni.si/Images/files/bamamarefezolegere.pdfIn PDF document text
- https://rzfmuhasebe.com/userfiles/file/wobizijuxinifadawu.pdfIn PDF document text
- http://laduses.nl/image/file/84425850070.pdfIn PDF document text
- http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/23391468299.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160851ac176173---xugovogolukuligeminizote.pdfIn PDF document text
- http://byty-pardubice.eu/UserFiles/File/fodajobofi.pdfIn PDF document text
- http://timandlor.com/userfiles/file/fijesojomirafunizevubu.pdfIn PDF document text
- http://rana-international.com/userfiles/files/98382300081.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/8ca6d90abab9e295b640e6cfc54bf789/wiwukokuva.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3a04e56a7---pedapoko.pdfIn PDF document text
- http://holidayservicemarsala.it/userfiles/files/81332633587.pdfIn PDF document text
- http://qcfloor.com/userfiles/file/zikutomoruk.pdfIn PDF document text
- https://mimpi1pusat.com/contents//files/zifivuminelaroz.pdfIn PDF document text
- http://coeb.eu/userfiles/files/10190111359.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/67292217801.pdfIn PDF document text
- http://s-pack.kr/userfiles/file/20210903225941.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_off0000bbc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBC4 | 10688 bytes |
SHA-256: a8335e77782dcf2f4bc1987ba399349db2f543ffd7d8694162ed5ded83a030a8 |
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font_01_sfnt_off0000d42e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD42E | 16904 bytes |
SHA-256: 931a6a398c89d5deed713c56ae22445b12e18a801d17243af08c703ac75a8a33 |
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font_02_sfnt_off0000ffe6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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