MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that lead to various websites, including those hosted on compromised WordPress installations. The presence of 'utm_term' parameters suggests an attempt to track user interactions or potentially disguise the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://laborke.ru/uplcv?utm_term=r+programming+mcq+questions+and+answers+pdf
- http://dentalweek.eu/userfiles/files/35669815095.pdf
- http://mebelhotel.ru/images/news/file/86796902514.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160b858e7145c4---12337083755.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/831a6d34f435b0b5533821a69ffbe0ed/97096359621.pdf
- https://esz.jp/img/editor/files/77587748649.pdf
- https://zoldlaptop.hu/ckfinder/userfiles/files/99206001160.pdf
- http://budaikepkeret.hu/uploads/file/32599690257.pdf
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b6f24a4b2---34680895022.pdf
- http://roland-toys.eu/userfiles/file/53452708542.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160870c73e9fe4---70898042952.pdf
- http://amctop.com/board_data/editor_img/file/202105310937.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e396e3802b---mufadetekorobapitiwasi.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/eb4e0e660bbbd9aa467b1ee190980a43/pewomavulonub.pdf
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/36428323398.pdf
- https://fa-vietnam.com/webroot/img/files/lefaperejot.pdf
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/1e48463671d81b8728e49eccb8d03fba/11950393235.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/64117208194.pdf
- http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/mufof.pdf
- http://crystalsteakandstogie.com/clients/1/1d/1dbb6d5698303b6304ae84622e226a19/File/tadepasemumofa.pdf
- http://dichvugiayphep.biz/upload/ck/files/wajaranavesuwumi.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/23e02b06a62c5bd2730c51601084c23f/13315869870.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/suguk.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1b1a93c08e---bikupulelafoboduwuvo.pdf
- http://beming.com/ressource/site-image/files/laleluluzebulikamofodu.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_off0000ed3e.binc4ef5db4ef1816ab03ae110f98af972498bd9701592838c87a94a420a2c32f70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED3E | 11296 bytes |
font_01_sfnt_off0001075c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1075C | 16792 bytes |
font_02_sfnt_off00011f6e.bind605d38cc4cebc91419a399523c061d4ac7ee67b57cada91e91288d3f7c3be91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6E | 17872 bytes |
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