MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress upload storage or disposable hosting, indicating a link farm for malicious redirection. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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 http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/1c7022c3a81b1b7a92aeda63312e3caa/48280134023.pdf
- http://capmar.eu/userfiles/file/vizukut.pdf
- https://anjingliar2.com/contents//files/kakedesugesinotiwam.pdf
- http://hajnysport.cz/FCK_userfiles/file/11076282271.pdf
- https://psystat.net/candyticket/uploads/page_images/files/15515639040.pdf
- http://vietdubai.com/userfiles/file/mawexawexosozotiw.pdf
- https://jkmart.net/FCKFiles/File/jetusasofejomuralu.pdf
- https://beautyyaurient.com/editor_upload/file/vuwebedevofumefifeligab.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/8622266a08bad59ca2f8b901d2e35f8b/rinamudugisiwaxosuwaje.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f91914dd33---34837949276.pdf
- http://dekoblickfang.de/userfiles/file/5632295735.pdf
- https://ciar.vn/uploads/image/files/migurigu.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/453e9db204ed1c400fb0a7fb6953278e/nujadonagivenejo.pdf
- http://scvumaichiramen.com/uploads/files/69543954471.pdf
- https://quangcaowebsite.vn/uploads/files/23178342313.pdf
- http://bradleyhillsapartments.com/demo/uploads/contents/file/ruzefomepusiw.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/bd3aurimssplmfnkd5kveu18q5/95649306959.pdf
- http://quimis.net/js/ckfinder/userfiles/files/65384595561.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084e4259618c---gopofujugazo.pdf
- http://akgwealthplanner.com/crm/files/9103963988.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cafeb049b1e---zerepepevexegiseme.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/18facd5cff1589da40e90a03c696a6e3/gutoroligewovaduvo.pdf
- http://www.jobsincrete.gr/images/_user_na/file/41007157373.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608559879485c---70477651481.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607156bd5b3fe---vabadoga.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=is+gosund+compatible+with+google+home
- 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_off0000f38a.bina23dff4f15c6901befdf4a1e848f1e13eedc78e7df043fb71b8e174926203feb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38A | 19412 bytes |
font_01_sfnt_off0001256a.binbb4776e8b7c94b238f773095c856468d35a83fc59a57d36e584000c11285867f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1256A | 11140 bytes |
font_02_sfnt_off00013ed6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13ED6 | 16792 bytes |
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