MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed for SEO poisoning or phishing. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://krisoc.ru/uplcv?utm_term=malayalam+kambikathakal+pdf PDF link annotation
- http://dailygameresult.com/editor/UserFiles2/files/siderexemuwanaf.pdfIn PDF document text
- http://criminisiepartners.it/userfiles/files/rekogogabufelovu.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/42001581211.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/79821498063.pdfIn PDF document text
- https://perfecthospitals.org/ckfinder/userfiles/files/71309421282.pdfIn PDF document text
- http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/kewowaza.pdfIn PDF document text
- http://georgekoldun.com/var/upload/file/82669378313.pdfIn PDF document text
- https://marblobathware.ph/app/webroot/img/files/42312981041.pdfIn PDF document text
- http://nct-vn.com/userfiles/file/78622527659.pdfIn PDF document text
- http://mitcostruttori.it/userfiles/files/xawebixaxugoxozabume.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/vufapexa.pdfIn PDF document text
- https://ewt.cz/res/file/sobexijulafemawe.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130340fdbe3d---72896711829.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/safifurixarefava.pdfIn PDF document text
- http://nenkin-t.com/upload_img/ck/files/bugonejojumazapunizuwu.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/3e6f79b048d23b1ea1aa0cb06a28126c/sodujoposi.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/e1477d6a62ab201ad07f90997e3bd17f/50185009797.pdfIn PDF document text
- http://igs.compcierge-asia.com/ckfinder/userfiles/files/pokuzisulujebotolo.pdfIn PDF document text
- http://gazdalkodjokosan.hu/img/userfiles/file/dowamarog.pdfIn PDF document text
- http://finara-v.com/file_media/file_image/file/26611773297.pdfIn PDF document text
- http://dryoucosmeceutical.com/userfiles/files/zipumegiwizonimuzuk.pdfIn PDF document text
- https://mytalk7.com/_UploadFile/Images/file/58055881702.pdfIn PDF document text
- https://zlataraburmevuckovic.com/files/86020348361.pdfIn PDF document text
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/1a53242ae86433d4dc8b58a96d720d23/78815603947.pdfIn PDF document text
- https://parisnordmedical.fr/docs/file/polizase.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_off0000bf34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF34 | 10476 bytes |
SHA-256: f284a81019b7d2df0976014a14966c1ce688df0be36cdae614e4abcedb9e9ee7 |
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font_01_sfnt_off0000d6bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eed1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED1 | 16036 bytes |
SHA-256: 18cf7ed030604c1076d89b4792ec3d0db694c8747ed371388311cd124d115cd1 |
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