MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting. These links form a link farm designed to redirect users to potentially malicious content, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://philabc.ru/uplcv?utm_term=strymtv+apk+download+for+android PDF link annotation
- https://alley.52886.tw/uploads/files/zikox.pdfIn PDF document text
- https://777mto.org/contents/files/83344746215.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/7ca5b206bb26c391382f33f0e82d1ba6/1492104718.pdfIn PDF document text
- http://geoplan.su/userfiles/file/75806826602.pdfIn PDF document text
- http://dachastyle.com/userfiles/file/54679951917.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135065ec64a8---rififafiboridaluremubavu.pdfIn PDF document text
- http://chapraptti.org/userfiles/file/42472504556.pdfIn PDF document text
- https://aaaxxion.info/images/file/xokukaxalulanu.pdfIn PDF document text
- http://garageanything.com/js/upload/files/38291331004.pdfIn PDF document text
- http://janjoling.com/public/ckfinder/userfiles/files/zimixuwerewakofibelagu.pdfIn PDF document text
- http://zzzwchem.com/upload/files/27600732758.pdfIn PDF document text
- http://denda.co.kr/ckfinder/userfiles/files/32528063080.pdfIn PDF document text
- http://hanarotalk.com/userfiles/file///wufagapeloxipujuz.pdfIn PDF document text
- http://misterholidaysanprisco.it/userfiles/files/xexetan.pdfIn PDF document text
- http://feuerwehr-mittenwalde.de/mediathek/files/guferegitasifum.pdfIn PDF document text
- http://generoussecurity.com/uploads/46883389230.pdfIn PDF document text
- https://istanajpdua.com/contents/files/52292097457.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137998d556a2---73560140599.pdfIn PDF document text
- http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/53319042526.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/52974351504.pdfIn PDF document text
- https://wonkingchina.com/d/files/fetuvarawigovusuzelavug.pdfIn PDF document text
- 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_off0000abbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABBD | 10792 bytes |
SHA-256: e516bfaa895f3acd7a349ed54bec726c0e7efbe00c0a466329445522878442a4 |
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font_01_sfnt_off0000c4a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dcb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCB3 | 14376 bytes |
SHA-256: effe6433991a9342b54f6cf530eaed0da989c525cc6babf15f82b4167d73f234 |
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