MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external websites, some of which are hosted on compromised CMS platforms. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggest an attempt to distribute malicious content or conduct phishing operations. No scripts were extracted, but the overall structure points to a malicious document delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9834
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 http://alda.pl/ckfinder/userfiles/files/kasite.pdf In PDF document text
- https://encoyun.com/calisma2/files/uploads/12122601680.pdfIn PDF document text
- http://envigest.cz/upload/file/14546040652.pdfIn PDF document text
- https://www.solucionaesp.com/ckfinder/userfiles/files/jalasojawedaxazofajexov.pdfIn PDF document text
- http://biancoacolori.it/userfiles/files/susegupak.pdfIn PDF document text
- http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/pazovawomadutugepofowo.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141fd6014036---7403853125.pdfIn PDF document text
- https://sanaspinler.net/calisma2/files/uploads/vebisoziril.pdfIn PDF document text
- http://fuzoku-kyujin.jp/ckfinder/userfiles/files/nevagevixasurasuwuduzup.pdfIn PDF document text
- http://movitecnic.com/ressource/site-image/files/32829975961.pdfIn PDF document text
- http://pnalog.ru/images/file/54431908645.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335235de46d---49897918161.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16131d51d0727d---volevebezu.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/zulujimonorolid.pdfIn PDF document text
- http://elma1.ru/!upload/files/49082359443.pdfIn PDF document text
- http://hangnhatbanonline.com/upload/files/49244542197.pdfIn PDF document text
- http://chromavials.com/d/files/lovigowogawuku.pdfIn PDF document text
- https://www.area-tlc.com/public/ckfinder/userfiles/files/59446994985.pdfIn PDF document text
- https://economiadecomunion.com/ckfinder/userfiles/files/pijitibilidipuf.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/161438e6ace517---7523374881.pdfIn PDF document text
- https://www.igescanada.com/ckfinder/userfiles/files/gekadogexatalavop.pdfIn PDF document text
- https://asiarsolutions.com/userfiles/file/17094016840.pdfIn PDF document text
- https://devcons.org/uploads/userfiles/files/mojojuxu.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/27262045738.pdfIn PDF document text
- http://www.gieskestukadoors.nl/ckfinder/files/files/2168587348.pdfIn PDF document text
- https://mercerapparelss.com/userfiles/files/70372196320.pdfIn PDF document text
- http://d2dgroup.net/upload/files/desimosefalibuwemerud.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=escapades+with+friends+2016+full+movie+watch+onlinePDF 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_off0000dd89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD89 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f59b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF59B | 19140 bytes |
SHA-256: ac76099c655b601142bcddbfc9d432ec13108e06b8a76c8cef3c0bdbf7ebf9da |
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font_02_sfnt_off0001274d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1274D | 11580 bytes |
SHA-256: 818ecec18b6c0c3562d155dff8a34966e8b9a17a605b47c70cc1dd1c37e15365 |
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