MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The 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. One heuristic specifically identified a URI pointing to a raw IP address, indicating a potential attempt to bypass domain reputation checks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://melz-feu.ru/upload/72040838075.pdf
- https://www.kindspring.org/inc/ckfinder/userfiles/files/bowogobilijomurumojaxa.pdf
- http://vouchertiket.com/airplane/ckeditor/uploads/files/zewamasamosebemal.pdf
- http://unite-chem.cn/upload/files/gomefelu.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139946c1158a---sisepaw.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137f6f18a325---82702420717.pdf
- https://graphicart.ro/fckfiles/file/bejas.pdf
- https://valubil.com/public/uploads/cms_file/cms_files/vudetofel.pdf
- http://phatnang.com/media/ftp/file/nizevavugujo.pdf
- http://gwardiajuvenia.pl/zdjecia/fck/file/dobatenadamudolejexalel.pdf
- http://saraya-shop.ru/upload/files/zinekovege.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/sikcdcfrae7g943is92tq43dgv/wokoxixamaseximuwed.pdf
- http://yuli-china.ru/d/files/zafudebudasuwojogipefowap.pdf
- http://studiomilano.eu/userfiles/files/48954233183.pdf
- http://goodtraefarm.com/ckupload/files/30713384450.pdf
- https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/noxupuzoguzibawuriruke.pdf
- https://losaltos.com/wysiwygfiles/file/45945930635.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16131addd4fc1e---77803126678.pdf
- http://keletunderground.hu/images/uploaded_pics/file/47867158588.pdf
- https://madame-tina.com/ckfinder/userfiles/files/didupikuwixemim.pdf
- https://thucphamtruongxanh.com/Upload/files/dulafaminujunita.pdf
- http://ccforum.kr/uploads/file/1631037863.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/161413e8a42398---88929028240.pdf
- http://bbhshipyard.com/userfiles/file/8060691791.pdf
- https://stancijanegrin.com/UserFiles/files/zisaxus.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=android+navigation+drawer+icon+color
- 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_off0000bb4c.bin5d01936294b782ac39472199b1da587b504ead35b5676769b5d15e8d26f4f94d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB4C | 10512 bytes |
font_01_sfnt_off0000d332.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD332 | 16792 bytes |
font_02_sfnt_off0000eb44.bine9018324ba65161f294c2f6b5a3bd6755067dd2e27157beb0046fbf0ae143f06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB44 | 16104 bytes |
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