MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external resources, many of which point to compromised WordPress sites and appear to be part of a link farm designed to distribute malicious files. The presence of a 'download button' heuristic further supports the attack pattern of luring users to download a payload.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://medvor.ru/uplcv?utm_term=quadratic+equations+using+completing+the+square+worksheet
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160aca71d00765---37128233318.pdf
- http://wabasnb.com/files/fckeditor/file/50068750760a5e659821ef.pdf
- http://www.jindatunnel.com/up_files/file/92383306480.pdf
- https://shibbirs.com/media/files/tokik.pdf
- http://farmaciacogliate.it/userfiles/files/wubajebobaw.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/25481910184.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/d55e1c185daeb4e15ca6dc5aed3df27a/sofapozakomana.pdf
- https://aiaciran.org/cache/fck_files/file/30348929970.pdf
- http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/57721907526.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/48a7f43ce218910756a22ba82cac71f5/37804851216.pdf
- http://kowalstwwo.pl/public/cms//images/file/jubogebe.pdf
- https://vieclamday.com/userfiles/file/zegedaxifizojujawituzoda.pdf
- http://studiogaleazzo.eu/userfiles/files/koribodowebelosamaxome.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/b49c1f0d7acfda634adbeccd0e52db8c/budug.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eda9c1d399---7499982011.pdf
- http://bangiyaparishadtoronto.ca/bpt/editor/uploadfiles/delapabarajijev.pdf
- http://architettoseneca.com/userfiles/files/71013052619.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/227a1e56526599bcf935a6623c60b5c7/gadotut.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caf0ac3cdb---97408403764.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3c1a7d8d9---52226265298.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/a0cgddeh6rg493g9112llv5krn/50551208289.pdf
- https://2ruoteexpo.it/ckfinder/userfiles/files/mozixefifojuxevuxagazokin.pdf
- https://tranthachcaodanang.com/uploads/image/files/24637893952.pdf
- http://studiotecnicoarduini.eu/userfiles/files/volojatevanesujof.pdf
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/0u27tqsk3igo2uph3gcvot0gbp/68278054475.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_off0000dc0e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC0E | 16792 bytes |
font_01_sfnt_off0000f420.bin4f0f9ab4075df6d30ccc14402495b41d6984f7e8abbab06c37bdcf7dedafb699 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF420 | 17696 bytes |
font_02_sfnt_off00012220.bin89e1ddcb51a4ab9ccc76f4167ba31d9a9fa27217d25173ac1bf7741c2cc2ebe9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12220 | 11444 bytes |
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