MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains a large number of embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. No scripts were extracted, and the document body was unreadable, but the presence of numerous external links strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://cottonweb.net/userfiles/file/3112575511.pdf In PDF document text
- http://airsoft1.ro/files/file/85486873197.pdfIn PDF document text
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073335e0873d---temisepezefuxumo.pdfIn PDF document text
- http://bsl-trans.ru/admin/ckfinder/userfiles/files/goler.pdfIn PDF document text
- https://vieclambanhang247.com/upload/files/benewuteke.pdfIn PDF document text
- https://makanbanyak.net/contents//files/70586676648.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608af228bdef9---58247971287.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ddf8f6baa8---52373968474.pdfIn PDF document text
- http://bsl-trans.ru/admin/ckfinder/userfiles/files/15787482970.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c32a11ee44b---resadalixiwixe.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e20fe4fedb---bakawamafulekefazuka.pdfIn PDF document text
- https://commonlawhouse.in/userfiles/file/sumadevidadiwulijeti.pdfIn PDF document text
- http://kemnhapkhau.com/upload/files/gokudupaninopamesutujidi.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-5-30/20210530032556277018.pdfIn PDF document text
- http://phunggia.biz/userfiles/file/vatupimobevijivuji.pdfIn PDF document text
- http://cungcapbaoduongcuanhatban.com/upload/files/56148841006.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/3ddad7a2b82869f88c0d88a181c19f85/43593756479.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16094a34169cc0---furezitivuladupovopana.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///juzafa.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/459814fdc6d3278fa5ca97712d7c5022/zuxiriminerem.pdfIn PDF document text
- https://adsbudget.net/userfiles/file/37810110519.pdfIn PDF document text
- http://biometria.pl/photos_fck/file/ximute.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16083584a4d0eb---33280977157.pdfIn PDF document text
- http://abwingsde.com/uploads/files/88721912246.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=excitable+tissues+mcqs+pdfPDF 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_off0000db40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f352.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF352 | 17904 bytes |
SHA-256: a6abc5ef7142e687b768e21dd08848a9a23c810ce397106aab7b625accb15a6b |
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font_02_sfnt_off00012195.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12195 | 10928 bytes |
SHA-256: 388e2e39bf4e39595374fd1b3be3f2571423fa4975c5c4f0cd10e18e40059ade |
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