MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting sites, suggesting a link farm designed to redirect users. The primary attack pattern involves exploiting user trust through a malicious document, likely leading to a phishing page or further malware download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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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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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://tarnava.eu/user_images/file/vezagiruk.pdf
- http://luckdidea.com/ckfinder/images_store/files/mobape.pdf
- http://wcsps.com.tw/ckfinder/userfiles/files/nizuwuravatenox.pdf
- http://anhuifan.com/upload_fck/file/2021-8-5/20210805210943745264.pdf
- https://neksav.com/upload/ckfinder/files/98188160632.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b44d97db994---xejuvulafataro.pdf
- http://dpsnowodworze.pl/userfiles/file/zetup.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/905197245db580a31b7fc83f81e8c2a8/21598325797.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161264ccc0c99f---duvadisekedipogugubok.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2036aba7f---75964248552.pdf
- http://alhs1973.com/clients/64426/File/forisawari.pdf
- http://ampletrekking.com/userfiles/file/xenagigunokizivabexir.pdf
- http://k2plusinterior.com/userfiles/46806549529.pdf
- https://sssmri.com/ckfinder/userfiles/files/21278541656.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d88ae8d934f---selapawake.pdf
- http://kalikraft.com/images/file/midojevuromadekub.pdf
- https://prairieroseclothiers.com/FCKeditor/file/vimejujawek.pdf
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/e9kee3dnp7ju73vr7sdnp1vonr/rurisafudajod.pdf
- https://keyseries.us/userfiles/file/52164148545.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834230df3b4---relarisoxubawinafivorojo.pdf
- http://gabortech.com/admin/file/2372488992.pdf
- http://myphamasia.net/upload/files/bumafufigumodirolaler.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/15e211ecf3058cf6978a2c6672b71f8f/lazadulefixogizu.pdf
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/9e355a0ab3928d19dcce76187447ccc0/33586379370.pdf
- http://gachbinhduong.com/upload/file/90810101936.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=algebra+1+matrix+addition+and+subtraction+worksheet+answers
- 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_off0000cc48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC48 | 16792 bytes |
font_01_sfnt_off0000e45a.bin14ad0fe5c42a45ca8dff1d6862f2d7939f39edf0789f503985d99089c87c3420 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45A | 17196 bytes |
font_02_sfnt_off000110af.bin86030761d00cde9b40353d2fe348934742612754f658d790c1d189b600709d93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110AF | 11368 bytes |
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