MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics identified the PDF as a link farm, with many links pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are likely used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://crysiq.ru/uplcv?utm_term=vpn+faster+download+apk
- http://studio5r.com/userfiles/files/wifanemuba.pdf
- http://around-sicily.net/userfiles/file/lilajopotaparowilaxanede.pdf
- http://cpghollywood.com/userfiles/files/63490137873.pdf
- http://files.ibiza-ferien.de/file/62868246353.pdf
- http://johnlillylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kakemoduwariwawujudeguvo.pdf
- http://hebammenglueck.de/ckfinder/userfiles/files/rimarixilabigagopepad.pdf
- http://teifsepahan.com/files/file/puvabadatiweletazew.pdf
- https://aprilboya.com/userfiles/file/diposamajixomazupevikez.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c4a8b8fa8---66940132497.pdf
- https://adurucui.com/ckfinder/files/927961066.pdf
- https://blgjad.com/upload/files/winejemilavonuz.pdf
- https://kozmetikadunakeszi.hu/userfiles/file/57304258173.pdf
- https://cs-nippon-cp.com/mailmagazine/upload/files/turuloxewek.pdf
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/76144046672.pdf
- http://brilspa.ro/userfiles/file///pupugegoluto.pdf
- http://hostingureitings.lv/uploads/userfiles/files/51947164313.pdf
- https://inprovitecuador.com/ckfinder/userfiles/files/degusebez.pdf
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132683228d8f---20342142960.pdf
- http://alituncer.net/userfiles/file/wurimufinotujegira.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161393d53a392d---lanawe.pdf
- https://ksi-system.pl/editorfiles/file/bakutetepow.pdf
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/kinosebofezipefemov.pdf
- https://willes-gb.com/uploads/files/202109050401378564.pdf
- 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_off0000b085.binb72f9fce2a3864fa459e363fb0209bc7349ffb8731c34d319d082546a119a8d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB085 | 14564 bytes |
font_01_sfnt_off0000d4f7.bin0b3e0351daecc209ab70941c7e9aeef1f84ae39f7ffb32b5d973ef68ce61cb4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4F7 | 10548 bytes |
font_02_sfnt_off0000ed42.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED42 | 16792 bytes |
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