MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The presence of multiple external URIs and a link farm heuristic points towards an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://oniceh.ru/uplcv?utm_term=paranoid+personality+disorder+dsm+5 PDF link annotation
- http://alatasfilms.gr/ILC/img/file/82502825130.pdfIn PDF document text
- http://noithatnhapkhaugiasi.com/luutru/files/zogegal.pdfIn PDF document text
- http://cuanhuaabshanquoc.vn/files/pasowepolitulafakilegabub.pdfIn PDF document text
- http://studiovalentini.eu/userfiles/files/pigaxonugotelumusuti.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161408e2895880---bamam.pdfIn PDF document text
- http://cuoredicane.it/userfiles/files/bamikodezebofitog.pdfIn PDF document text
- http://snap-drone.com/userfiles/file/28794397717.pdfIn PDF document text
- http://bluebiz.kr/userData/board/file/1811482845.pdfIn PDF document text
- https://apra.pl/files/file/kapibari.pdfIn PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/27572093550.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021091415125917.pdfIn PDF document text
- http://net-work.cz/data/file/midibowax.pdfIn PDF document text
- http://bftt.marketsearching.com/upload/files/67797577480.pdfIn PDF document text
- http://trumoi-khutrung.com/upload/files/lewaxolixatal.pdfIn PDF document text
- https://deniz-sogutma.org/img/userfiles/file/88978938963.pdfIn PDF document text
- http://galaxyjewel.cn/uploadfile/files/sewavevak.pdfIn PDF document text
- http://alarcon-v.com/editor_upload_image/file/47796583230.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1a10f0247---86825122053.pdfIn PDF document text
- http://targhevaticane.it/userfiles/files/88536248848.pdfIn PDF document text
- http://vitcongiong.com/uploads/files/pimasi.pdfIn PDF document text
- http://pokewaveanaheim.com/uploads/files/liwevotav.pdfIn PDF document text
- http://aaz.sk/editor_uploads/files/wufenezuzasaxibuvowuti.pdfIn PDF document text
- http://metamorfoza-krosno.pl/userfiles/file/42970616922.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/a5e23762192a3109699ec8766fe47208/51829362214.pdfIn PDF document text
- http://budropol.de/Upload/file/92334770365.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_off0000c914.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC914 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e12b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE12B | 10800 bytes |
SHA-256: 53a060d727b93d4fc27aed75db3e4557ee4ad2d2cd536439ae5479f4c00888a6 |
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font_02_sfnt_off0000fa13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA13 | 16812 bytes |
SHA-256: 20de10dfe46b80688d17667ea8d384089906cfcbb545ea91775f0fdf028191a0 |
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