MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and a significant number of external URIs, many of which are hosted on disposable domains or compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of a 'utm_term' parameter in one URL suggest a phishing or scam attempt to drive traffic to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to exploit vulnerabilities or deliver further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://irlanc.ru/uplcv?utm_term=candy+crush+friends+saga+unlocked+mod+apk
- https://olterus.org/contents/files/vugawigutajosu.pdf
- http://naturestuff.nl/siteimages/file/puzapilevefufe.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/161303f4001922---tekixitow.pdf
- http://isagenixmakessense.com/ckfinder/userfiles/files/tiluken.pdf
- https://www.habitat-morvan.fr/ckfinder/userfiles/files/navumelokesudapesuxam.pdf
- http://joyerialaplaza.com/ckfinder/userfiles/files/8821558671.pdf
- http://gerastar.com/userfiles/file/vovelarolixum.pdf
- https://vongtaytramhuong.vn/upload/files/26280864849.pdf
- http://meadescafe.com/userfiles/file/21675821762.pdf
- https://horkolas-gatlas.hu/ufiles/file/guxewavivakejobefimas.pdf
- https://marathonlaval.com/userfiles/files/vemigopud.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/dc829636e480768b18f46cd4435bad71/nitedamugelatugidop.pdf
- http://sibzakon.ru/ckfinder/userfiles/files/wexifalotur.pdf
- http://net-marketing.hu/images/files/44411149302.pdf
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/047ebafc720453bc25365b325c6f47c5/44142980286.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/e9676a7170784b1957f176fba006ed3c/bexasofakuzomi.pdf
- https://cooperadora.grupocreartel.com/documentos/archivos/kaveludewonakazewusewaze.pdf
- https://gestionarival.com/userfiles/file/3031232671.pdf
- http://anchor-m.com/js/upload/files/8512189531.pdf
- https://octvads.site/js/ckfinder/userfiles/files/gamiponulewokugivuwepim.pdf
- http://capesociety.ca/uploads/files/37380368133.pdf
- http://malbreil.com/userfiles/file/rafifutamibopavipi.pdf
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/totomozajis.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614222a550b45---gakejoluwaved.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_off0000d6af.bin60eba5ca09834e6dd955e13f8df34ba8476c283c658c797e2006caedb6562dca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6AF | 11304 bytes |
font_01_sfnt_off0000f0d8.bin3f15cbe4a13f4f0bbd567f8036e290f991ef11a7b53f7d00a0676109fdb6ad05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D8 | 17608 bytes |
font_02_sfnt_off00011e84.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E84 | 16792 bytes |
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