MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The presence of ML and ClamAV detections, along with heuristics flagging it as a link farm and potentially malicious, strongly suggests a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://baatco.com/ckfinder/userfiles/files/nuwakeb.pdf
- http://amy-tsai.com/images_express/userfiles/files/rizirofusajuga.pdf
- http://litroshaber.net/resimler/files/redolutof.pdf
- https://koparieshorvathbusz.hu/files/file/42511719503.pdf
- http://zjgjqmr.com/v15/Upload/file/2021912052572478.pdf
- http://homestationrealty.com/userfiles/files/37720105372.pdf
- https://tractorpulling-emmeloord.nl/upload/file/wopobu.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/1ddbfee00b17476064b565257d9864a1/nulose.pdf
- http://aa-nusd.jp/50264335586.pdf
- http://mwflower.com/upimagesfile///ranifunetizawutakukiruv.pdf
- http://matras-devison.com/upload/file/rorebo.pdf
- http://jmk.kr/ckfinder/userfiles/files/1002778229.pdf
- https://lrdreamteam.com/files/files/file/InfoProduct/file/13019440920.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/ebe80926c83bd8a2d114f717f4e5d004/dedike.pdf
- https://ksboutlet.com/file/files/fowujalaw.pdf
- http://lnshiyue.com/userfiles/file/20210908154634_1439924160.pdf
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/11374905251.pdf
- https://zenithoverseas.com/assets/userfiles/files/97462937812.pdf
- http://ecolservizinettuno.com/userfiles/files/43361245506.pdf
- http://escrima-rlp.de/userfiles/file/xebarukojifodapolutug.pdf
- https://www.clinicaepilepsia.cl/ckfinder/userfiles/files/gupulufuxe.pdf
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/wodukazoxabudefelo.pdf
- https://vinatech.com/userfiles/file/povelefaw.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c807aa2d57---banujoxizuri.pdf
- http://ssaisarang.com/ckfinder/userfiles/files/51155472853.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=pdf+to+excel+document
- 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_off0000dd4f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4F | 16792 bytes |
font_01_sfnt_off0000f561.bina82d092056f24e5d3e7ae37d2d073e6011270d41f67af5b581a52180acb84867 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF561 | 17960 bytes |
font_02_sfnt_off00012374.bin7828bca38fa659bf481e7f1774441548e3d4e5460c8d6dc814479d4da46add8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12374 | 10320 bytes |
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