MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a ML classifier and ClamAV, indicating malicious content. The 'SE_BROWSER_INSTALL_LURE' heuristic suggests the document attempts social engineering to prompt the user to install a browser extension or update. The presence of numerous links to potentially compromised CMS upload storage and disposable hosting further supports a phishing or malware distribution scheme. No scripts were extracted, but the overall structure and heuristics point to a malicious PDF designed for user deception.
Machine Learning
- Nyx PDF Classifier malicious score 0.9959
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/p414204iaf20s6eqdttvgedau2/jifuzago.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7cdce2fe3e---94753918213.pdf
- http://burelomdo.com/ckfinder/userfiles/files/migafomorolotub.pdf
- http://kubabus.cz/novy-web/upload/file/vodabijosikam.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a8113ec92d3---46902313898.pdf
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/4b67c6afbb7ea8001f9c93b570341f21/sipepedejuvutidi.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a45eb044b6a---39365326975.pdf
- http://terezmisszio.eu/files/file/54528285403.pdf
- https://medsplus.us/admin/images/file/bakemokagexukufamipumorer.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bea1a1a72---59450948779.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/1b40f40356098f7f9c2bdb5a698fc32e/39075754365.pdf
- http://fulepmark.hu/nyebu/fulepmark/userfiles/file/32654833904.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/5386271d9c519f4acd6335cdb48a5765/57658639265.pdf
- http://humboldthighclassof79.com/clients/1/19/19f040aad945c40a0acbd79abd3dc6cb/File/74650060017.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bb4fe82c286---7548248156.pdf
- http://seoulsquare.com/userfiles/file/52828988573.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0b289db91---pikufinanogupuzadi.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/4be4f46adcf93ee98dc1ddd52d580694/wosule.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4702564935---43708789592.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/afs2u9lt303jebuul4sk97hiss/salujibetuxuxokanoju.pdf
- http://c-amc.com/upload/files/33155658779.pdf
- https://kingyao.com/uploadfiles/files/20210706_015318_7069.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074ac70cacd4---9137305344.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=brother+manuals+download
- 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_off00013a0d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A0D | 16792 bytes |
font_01_sfnt_off00015224.bin85e3a80674a24714f1d8285e4337629c93a146efe3ce83f9f3b33d2c7ad71427 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15224 | 10660 bytes |
font_02_sfnt_off00016a79.bincd867bc293c2b7eca8c1d936d832bebe5cf6db8f67a00d435ca8fdbea66f4290 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16A79 | 17644 bytes |
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