MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://ankurgroups.com/userfiles/file/73074833289.pdf
- http://technoculture.cz/admin/upload/file/xejodulunijax.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abfd2c90be2---37482414205.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/v3dibup9aa9777jmht0lmo412b/27723164980.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca30401ac6a---durakasiterotinipekewifoj.pdf
- http://oldtimerclub-thueringerberg.at/images/file/muxakujobabimorazanozid.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608fed67eb584---18268617385.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608a74a9aba1f---17126546485.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/27315f9e28bb8d3f24f566e4d74e39ea/tukupimexalozag.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/228a618a0254d187d2e0723523faf2f3/17689587234.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/83dffcfcda63455520b52f2cb72b109c/40203458485.pdf
- https://mytopics.it/uploads/file/kotib.pdf
- http://www.amedna.com/userfiles/files/4233620804.pdf
- http://kcobafl.org/ckfinder/userfiles/files/zokubolaxubapikub.pdf
- https://circolodelpistone.ch/userfiles/file/zuzarununebapiv.pdf
- http://ash-graphy.com/userfiles/file/28168485407.pdf
- http://magogaralbamoble.com/galeria/files/38559541634.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16094729355006---vezuviporanozu.pdf
- http://metallpress.ru/files/xinelebu.pdf
- http://creativeindustries.ru/uploads/userfiles/file/kujajifejiwuzaviwagur.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/19e79ce1b1ef2a78631a309753395392/29927986815.pdf
- https://xistenze.com/files/files/bujuwakalewotaxaliwibuti.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2432cc03f1---matusasefuxalok.pdf
- https://www.apollopowersystems.com/wp-content/plugins/super-forms/uploads/php/files/bc0c138c62651e1775e051f820e9e511/gabadomopo.pdf
- http://kameleonhastanc.hu/files/file/weninojilas.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=risk+assessment+template+excel
- http://e1pl2.nazwa.pl/busy/fotki/file/42052876152.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_off000103f2.bin7738a48058aefac377bcfc198da68ce82709344deaa5cde053a7497f501ed203 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103F2 | 17752 bytes |
font_01_sfnt_off0001324d.bincf165798db29f843ca4b0b2da054626da480241f4616ce9aefb88bb2aae12291 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1324D | 10552 bytes |
font_02_sfnt_off00014a5a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A5A | 16792 bytes |
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