MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to compromised websites, suggesting a link farm designed to host or redirect to malicious content. The presence of a 'download button' heuristic further supports a phishing or malware distribution lure. ClamAV detection as 'Pdf.Phishing.Trojan' confirms the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://archism.ru/uplcv?utm_term=sweet+baby+mp3+download
- https://luyenthitoeic.info/userfiles/file/12820254430.pdf
- http://zovsh.com/Uploadfiles/files/kifesovejilivetogiwinunaj.pdf
- http://alaskacounseling.org/clients/8/87/870ae3779d21e956d596131c1dd113ff/File/37161597728.pdf
- http://vinhthuan.com/upload/files/84010457610.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/2c6e38754695d52083c284ad4912a70c/35113516378.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-5-12/20210512103306687353.pdf
- https://girilawfirm.com/content_files/files/butujoz.pdf
- https://jagominum.com/contents//files/tuvawu.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/2780e5d20fca4bb2100f05e24df3bd58/fudiganedowokiko.pdf
- https://iwnta.com/userfiles/file/57314874626.pdf
- https://bonacorsi.it/file/faxikuvapigerovuzopatoxiz.pdf
- http://noxsun.com/jingkelun/userfiles/files/20210603110303.pdf
- http://verduciautodemolizioni.it/userfiles/file/86207854481.pdf
- https://fotobolfestmeny.hu/mvc/userfiles/file/ziretanibevev.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087e6f69ecc9---92565901029.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/jqc9g69b0o5qa21gce2b92irh9/wezulimivesop.pdf
- http://classicalgardenfountains.com/uplds/file/70225852108.pdf
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/70f0deb11967cc447ac0c83681a94967/75148310036.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160820136bdbd7---kirimubedan.pdf
- http://muszempilla.com/files/file/59824419624.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c77243096---94133196170.pdf
- https://simon-daulte.com/ckfinder/userfiles/files/70640260545.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_off0000bf84.bin030ae87ef7999479723ee89fb28ce03d6546f139c0aa57d0136d3c05ab425b41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF84 | 10780 bytes |
font_01_sfnt_off0000d832.bin710aa014242bf4b35a0a372092eb9842f3941d151e5542a8db3a4ad687913818 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD832 | 17020 bytes |
font_02_sfnt_off0001051e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051E | 16792 bytes |
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