MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with a phishing campaign aiming to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://iaestedresden.de/userfiles/file/22570608820.pdf
- https://tavio.ru/files/file/lifosipolivasedide.pdf
- https://media-get.com/userfiles/files/25499446267.pdf
- https://mangonebike.com/uploads/file/nesolibewujogijesaseranat.pdf
- http://kliknetezde.cz/admin/obrazky/file/zusepevejixizesusami.pdf
- http://tianlanip.com/filespath/files/20210814012210.pdf
- https://alternativecarrepair.com/userfiles/file/55704984813.pdf
- http://thegioichuyendong.info/app/webroot/upload/files/93605384335.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/57eui07ns8mbt3uu9e1j9vc4s8/65873034679.pdf
- http://langeline.com/ckeditor/upload/files/77613127842.pdf
- http://www.mmalappeenranta.com/tiedostot/files/27364662223.pdf
- http://wine-paraphernalia.com/files/winep/_repo/file/tofekuvevow.pdf
- http://vom-ragnaroek.de/uploads/file/vujuworeki.pdf
- https://rybczewice.pl/userfiles/file/voxina.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba45934cc5e---16562824373.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ae05889c12db415428e91ce6060f6699/vufugimowopotutonasobadu.pdf
- http://nppmaudaha.in/ckfinder/userfiles/files/16365112873.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c90b029989---sajefimilavawa.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be76e1ee6ba---22926746162.pdf
- http://dodogs.ru/sites/default/files/file/15366738094.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0aea4139b6---gumewowonub.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad7f0e25f80---dezufoxixiwufutedeladug.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/56a3329e6d68d2b60b132c6f39e10edb/namekagadanesuja.pdf
- https://marblobathware.ph/app/webroot/img/files/notosixetipavexevixefozo.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/1stolresbucslmn5mq49uk7hg2/pilul.pdf
- https://nilsagame.com/calisma2/files/uploads/16226722825.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=retail+banking+products+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_off0000e4b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B3 | 16792 bytes |
font_01_sfnt_off0000fcca.bine72d78dad2b295887029053f635e0213d6a114b864f4fe8642efac4cf5ba34c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCA | 11172 bytes |
font_02_sfnt_off00011697.bin6db7a6db3e40b4f3e188f53aed463a6cd76b9301e5f14b983871807cb4dc8617 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11697 | 19144 bytes |
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