MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to direct users to external malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://crewmak.ru/uplcv?utm_term=upper+intermediate+workbook+answer+key PDF link annotation
- http://ajisushionline.com/uploads/files/32263503523.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16131ca3a53954---72009708344.pdfIn PDF document text
- https://iqmuseum.mn/uploads/files/zinowupuneb.pdfIn PDF document text
- http://frutapac.com/ckfinder/userfiles/files/52604188998.pdfIn PDF document text
- http://homelife-superstars.com/image/files/kanetoxal.pdfIn PDF document text
- http://reylab.com/userfiles/file/bimemigojar.pdfIn PDF document text
- http://benetalent.com/upload/files/gefavabe.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/3mvq04uo5q99o9qf5l3toaogli/78053435341.pdfIn PDF document text
- http://oa30us.com/userfiles/file/63794094049.pdfIn PDF document text
- http://pspectr.ru/userfiles/file/worojifukeluduzelunulij.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/504d43536fb9b34b81c6eacf85addf81/wisolorolegezafetotejis.pdfIn PDF document text
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/7391617353.pdfIn PDF document text
- https://bepxuyenviet.com/upload/files/9552491655.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///2021090619847_762918575.pdfIn PDF document text
- http://imhkayseri.com/resimler/files/72182536951.pdfIn PDF document text
- http://z-sinpro.com/upload/files/29675992422.pdfIn PDF document text
- https://samuelben-horin.com/userfiles/file/98185161774.pdfIn PDF document text
- https://e-casainteligenta.ro/userfiles/file/jisazezuxofudopelos.pdfIn PDF document text
- https://butchercurnow.com/img/shop/contents/42958435756.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145976a904f0---wedizexedunomiv.pdfIn PDF document text
- https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/gemuzidif.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_off0000b43c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB43C | 10948 bytes |
SHA-256: 5c5b4fc3f09ebc00e9312fe98177a185d11db735e2f62b0510e1374a779ba10b |
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font_01_sfnt_off0000cd6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD6B | 17792 bytes |
SHA-256: b336ff34b826d2671f4d4f74cd66e427a92cf0f39eaa45fc2e6d86990596f5fd |
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font_02_sfnt_off0000fb66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB66 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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