MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by multiple heuristics and a machine learning classifier, indicating a phishing or trojan threat. It contains numerous external URIs and links to compromised WordPress sites, suggesting it is part of a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users to external sites via embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://inwebjor.ru/uplcv?utm_term=what+does+it+mean+to+have+ringing+in+your+right+ear
- http://architects-desk.com/uploadsfile/magigokulirad.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a124d2063---wojotijutelu.pdf
- http://www.gesas.it/media/mailinglist/file/putedesivorefatefaro.pdf
- http://livingkaneohe.com/userimages/73318843565.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/f82p0dd01hq0tjiabnfpm0fl93/4208822342.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa69a0ede4---61669747433.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/j6f07hph112930jua4ffev6ugl/dewowabapoxenan.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2fbd1a193.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c71ee42ed9e---20071913170.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/78648165541.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609028b8afe88---48330527095.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092691f9c3a4---sutoj.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb033316e4---tizotanuluxutejumawe.pdf
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/33392342247.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/3q3ne4ngtoogo29om14tbmpo6g/pijurutujisuwudorigipok.pdf
- http://rszm88.com/upfolder/e/files/20210612015826.pdf
- https://betenagro.com/sites/default/files/file/kaxevusuxibemototetewam.pdf
- http://studiotecnicoarduini.eu/userfiles/files/tamarugejoniverewakiwir.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/a48a9d0ae56637bc382e748f3130d41a/zexakop.pdf
- http://atthaya.com/file_media/file_image/file/89182958329.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd17e82ea3---tavabapipufep.pdf
- http://www.empresshasnoclothes.com/siteuploads/editorimg/file/zigadexuduvevokofabiso.pdf
- http://bagliodeimille.it/userfiles/files/53952358184.pdf
- http://woodbridgeabw.com/uploads/files/23014622894.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011117.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11117 | 16792 bytes |
font_01_sfnt_off00012929.bin1b23604f9a268a2a56ddd644c00bac9befa81534cb2b5bebe26bef7858eceb21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12929 | 16716 bytes |
font_02_sfnt_off00015490.bin8f0d6a3698ea7df3e31d33dc1f3e2d6e9f3c0f890ac7df700e3d579041bd9fa6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15490 | 10924 bytes |
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