MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, including links to compromised CMS upload storage and a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://eot.mn/uploads/userfiles/files/80848051266.pdf In PDF document text
- http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/4453289550.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/33536529564.pdfIn PDF document text
- https://ecodiagnost.com/ckfinder/userfiles/files/keludobe.pdfIn PDF document text
- https://autoskola-scp.com/files/17037611942.pdfIn PDF document text
- https://ddtoyz.com/ckfinder/userfiles/files/jemekorozazafopeneram.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613293e7c0967---xeseponu.pdfIn PDF document text
- http://candybeauty.vn/upload/files/77985864559.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///murulukofunozogiwapalizuk.pdfIn PDF document text
- http://studiofranzoni.eu/userfiles/files/85494886581.pdfIn PDF document text
- http://unixsensor.com/uploads/files/202109121454029811.pdfIn PDF document text
- http://okna-kursk.ru/page_edit/_samples/userfiles/files/zimik.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/rufadofevapereworoz.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1613b35406ad55---83197337354.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1613052ce3bdd9---wexuga.pdfIn PDF document text
- http://londonjip.com/userData/board/file/41809038104.pdfIn PDF document text
- https://total-sport.pl/img/upload/files/zimugobupo.pdfIn PDF document text
- http://bjyhyy.cn/filespath/files/20210905084405.pdfIn PDF document text
- http://www.alfapilates.pl/upload/file/90571963539.pdfIn PDF document text
- https://kirbas.com/img/uploaded/file/zupalevogebululiba.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/505ddba299125253a6887ec65df10e0e/74299540797.pdfIn PDF document text
- https://www.jaegeraviation.com/ckfinder/userfiles/files/wogugukuvutupoxu.pdfIn PDF document text
- http://hemeringen.de/ckeditor_ablage/userfiles/files/75288154091.pdfIn PDF document text
- http://lidaoxc.com/upload/files/75989904651.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=express+vpn+apk+download+modPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b278.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB278 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8F | 10692 bytes |
SHA-256: 60348c411a4d608eecda1e076a54274cacb90378eaa86e1e5fafc8115dc4865d |
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font_02_sfnt_off0000e321.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE321 | 14816 bytes |
SHA-256: af8324157829fc31879d12ce2d2b90f5d86d8cec288179539a705ab4df157375 |
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