MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous URLs hosted on compromised CMS uploads, suggesting an attempt to distribute malicious content or conduct phishing. The presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate a deliberate effort to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0cf2cdc459---49311709376.pdf
- http://garystrike.com/clients/3/30/301ae0ed988f9237e4cb8f8c41f6cb36/File/tisiz.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/66fc8575af3597e84ef58e0d58ee53e3/tosiredena.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/f743fa2eb76562796342f31493fb18e0/mogagofud.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/d827418adbd90a55b4a2f519dc19b47d/zawenixalakuw.pdf
- http://wellnesszeewolde.nl/site/data/ws/files/2141471100.pdf
- http://www.deopendeur.org/imgUser/file/3848169506.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f243f25574---58587398210.pdf
- http://bigsvatcharasith.com/userfiles/file/87971876848.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16082751299b28---24787718689.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/6ib4275p3903g355cuvkjh9uld/sigafuzewefubalovej.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa82b954b5b---92208707015.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c33346ac38---fojolenowexewov.pdf
- http://aeronautike.com/userfiles/file/16274281061.pdf
- http://mu-rrrc.com/userfiles/file/2776472697.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ea2b4e263---1834662018.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/lh5p9cdrircs7sphru9vskg2hu/17907286664.pdf
- https://lescourailleurs.com/upload/editor/file/59005477126.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/32168506954.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/kpqjnodet5bakheui5taqicdf4/junure.pdf
- http://3q1p.com/upload/file/210618101833658251dgfxplx5rur5.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609e08fe7c6d9---retafubesiferunumilivuruk.pdf
- http://graham1978.com/clients/79565/File/7373644268.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=skyrim+frost+horse
- 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_off00010443.bin5b5cd986800d9e3286e9758d5b942199ad4159853d194dd03717b2eaaeb4ccde |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10443 | 19260 bytes |
font_01_sfnt_off00013570.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13570 | 16792 bytes |
font_02_sfnt_off00014d87.bind90ab1ed83527a0427342f2951a2cb937d5cc229c9d606770415b1dc3102a397 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D87 | 10448 bytes |
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