MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs that point to a variety of domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly indicate this document's purpose is to act as a link farm. The ML classifier and ClamAV detection further support its malicious classification, likely as a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://laborke.ru/uplcv?utm_term=aplikasi+game+pubg+korea PDF link annotation
- http://amsuatrust.org/survey/userfiles/files/50200508440.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161445d6a425df---lapexepubepuvimizusu.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/db9825f8baf28e3e8335ea9a9dade468/mazanitifutopepefewijigo.pdfIn PDF document text
- http://pasted-radio.de/web/files/64266942163.pdfIn PDF document text
- http://manvilastrust-org.bvirani.com/ckfinder/userfiles/files/6189097456.pdfIn PDF document text
- https://condominiovillage.com/userfiles/file/14653118033.pdfIn PDF document text
- http://belv.ru/userfiles/file/kirez.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210904_155121.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/9dafce74484535105441cd421ab854d4/fezeveg.pdfIn PDF document text
- http://icbiz.ru/userfiles/file/zipijoginan.pdfIn PDF document text
- http://jsqnchem.com/upload/files/zarolukobitevirax.pdfIn PDF document text
- https://manusingh.org/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/14204933253.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/23053957280.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/98527735059.pdfIn PDF document text
- http://goang-hann.com/uploads/files/202109262252457775.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/lizom.pdfIn PDF document text
- https://pointvirgule.ca/upload/editor/file/7670177112.pdfIn PDF document text
- http://szamosiszerviz.hu/feltoltott/files/21570433726.pdfIn PDF document text
- http://myesen.life/userfiles/file/90132139122.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141bd0b994c0---9347115668.pdfIn PDF document text
- http://altaprecision.com/userfiles/file/20094807587.pdfIn PDF document text
- https://777mto.com/contents/files/bidozupotetonogalowurupuv.pdfIn PDF document text
- http://mega-stainlesssteel.com/uploads/image/files/dowonuk.pdfIn PDF document text
- https://altaamir.ipixpms.com/Rapport/public/assets/ckfinder/userfiles/files/94340912892.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_off0000b1f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1F3 | 14944 bytes |
SHA-256: e4897feec871349740a15cc2d35735e4b3f632504f98251aed9922cb0e06c8a0 |
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font_01_sfnt_off0000d78c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD78C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000efa3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFA3 | 10708 bytes |
SHA-256: 15fee7e72ba060d9bbe522d02ce72ad7d16135b0814284b4bb3c1953c69fdb59 |
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