MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of 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 for phishing or malware distribution. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://logo4you.dk/userfiles/file/pexewonanepefufiladujal.pdf In PDF document text
- https://schachverein-marchhoefe.ch/fcsr/news/upload/file/nabowemozegojanewigowegi.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1dbd43d42---vamawugififati.pdfIn PDF document text
- https://fuze-pay.com/ckfinder/userfiles/files/65148160008.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/jchesr6qe3g0u6um09dg0m9nnc/74823423778.pdfIn PDF document text
- http://sofia-es.tokyo/yamituki-n/uploads/files/sitig.pdfIn PDF document text
- http://rothemtour.com/FileData/ckfinder/files/20210903_D917C71C72EDA2CA.pdfIn PDF document text
- https://www.institutvzdelavani.cz/files/33291169133.pdfIn PDF document text
- http://www.eau-msu.ru/ckfinder/userfiles/files/68986818499.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bf3ca7871---15196976987.pdfIn PDF document text
- https://tonthephunglan.vn/upload/files/31879826627.pdfIn PDF document text
- http://showplus.ae/userfiles/files/mubozujibu.pdfIn PDF document text
- https://eminentland.com/admin/userfiles/files/23409684730.pdfIn PDF document text
- http://metapolar.hu/tmp/13843913444.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/27833214959.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/kblh8amad0hu3qvi323jb88og6/tirubopebugekoxake.pdfIn PDF document text
- http://cuboni.com/uploadfile/hong202109031617173117.pdfIn PDF document text
- http://tobn56.com/UpFiles/file/73112054098.pdfIn PDF document text
- http://expertsystemgroup.com/file_media/file_image/file/40664872975.pdfIn PDF document text
- https://koltoztetes-szallitas-lomtalanitas.excore.hu/ckfinder/userfiles/files/48389083825.pdfIn PDF document text
- http://fleshlight-tw.com/userfiles/file/dapuvetogemanemilasukus.pdfIn PDF document text
- http://koreabulk.net/userData/board/file/jebotasun.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=2048+cards+appPDF link annotation
- 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_off0000f605.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF605 | 17976 bytes |
SHA-256: c7771f7e0b3db3b2d00614c93aee129f798145324d1a25f33842601e8c6e72a6 |
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font_01_sfnt_off0001248a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1248A | 10348 bytes |
SHA-256: b56cda6bc04276db8e0a89af585cff9c544f6a2b79fedf89c823dfbb18437847 |
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font_02_sfnt_off00013c14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C14 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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