MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure indicate an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://smidgel.ru/uplcv?utm_term=proofreading+worksheets+for+2nd+graders PDF link annotation
- http://saharun.org/uploads/ckfinder/userfiles/files/pobonovutakopafunodesomos.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6f54b84789---42510972008.pdfIn PDF document text
- http://baiduvpn.com/upload/files/lusazakepog.pdfIn PDF document text
- https://roweryelectra.eu/app/webroot/uploads/file/16279406750038.pdfIn PDF document text
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/puxadesumexisazurumo.pdfIn PDF document text
- http://spoilersmensgolfclub.com/clients/865201/File/gitatot.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/mikowapazuwuretitad.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5516b568e2---dejolala.pdfIn PDF document text
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/82c3f2412c0b82a39004c956e4fb4edf/95624276166.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/349366456bde778eb8e9e859621e68c9/39998336015.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd662566e3---lojukediwa.pdfIn PDF document text
- https://tl-systems.hu/files/files/zejipexe.pdfIn PDF document text
- http://eksan-ltd.com/userfiles/file/ranonafedufav.pdfIn PDF document text
- http://asbazainville.org/userfiles/file/wugoleluloxofazukod.pdfIn PDF document text
- http://avanti.pl/userfiles/file/87636615727.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/91daeb91c8d829cf7f148663ca38dc54/82281173113.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d82d1ec8225---49913994579.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/siriwun.pdfIn PDF document text
- https://livnica-metalurg.com/images/pages/file/tadute.pdfIn PDF document text
- http://slp61.com/clients/e/e2/e296dcecfd7d10ffef0cc83fef253c72/File/nulejiku.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/21131450638.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/oj6qus15p3238gbcp1utb0qgvt/50026630314.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c03e517f410---85526032404.pdfIn PDF document text
- http://m3hotels.com/userfiles/file/dotumexoda.pdfIn PDF document text
- https://pk-kuepfer.ch/ckfinder/userfiles/files/wimosazi.pdfIn PDF document text
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/1bc58eaa0ea61521b82e2c00fa59abf8/lomojanekokiz.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_off0000cc44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC44 | 10888 bytes |
SHA-256: d6b9da6fb8dd7db9bf324ab017e77f4fd6b8df3e28be3e87c3fd33b7b3f2b0e4 |
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font_01_sfnt_off0000e54f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE54F | 18692 bytes |
SHA-256: 3eabafdcbbe333777177c0ba9cf0c756b1f81b06aba430b033522525dcbe6f29 |
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font_02_sfnt_off00011557.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11557 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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