MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://synerhu.ru/uplcv?utm_term=ds+rpg+roms PDF link annotation
- https://rieker-consulting.eu/files/file/54711169090.pdfIn PDF document text
- https://sma-dfgg.org/site/admin/file/77039610722.pdfIn PDF document text
- http://phuongdonggolf.vn/app/webroot/uploads/files/18252077775.pdfIn PDF document text
- http://hanstime.com/userData/board/file/xomopajeturumaruxazu.pdfIn PDF document text
- https://netwindowvn.com/uploads/userfiles/file/2958674966.pdfIn PDF document text
- http://ashioke.com/images/library/File/ruzot.pdfIn PDF document text
- https://kaisar168.com/contents/files/91068007144.pdfIn PDF document text
- https://beyondpins.com/calisma2/files/uploads/48395725314.pdfIn PDF document text
- http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/50211040568.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161396cbbbaa49---sawaduzexelemepororo.pdfIn PDF document text
- http://tiszaikaland.hu/upload/file/98818834921.pdfIn PDF document text
- https://stalbeckers.nl/userfiles/image/file/jizanisevixivodef.pdfIn PDF document text
- http://delfosventures.net/userfiles/files/subizexukiwokekekilim.pdfIn PDF document text
- http://dorp.pl/userfiles/files/gonowibutoxomadit.pdfIn PDF document text
- http://coaching-scolaire.net/userfiles/file/teragotugisumafag.pdfIn PDF document text
- http://blow-w124.com/js/upload/files/kadekavutajizawodadivaju.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613456e8bb804---sovadakizezuxak.pdfIn PDF document text
- https://umutisi.com/umut/upload/files/53261454678.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/161329d6a9de82---31219590246.pdfIn PDF document text
- http://z500.si/files/26985261655.pdfIn PDF document text
- http://studiotecnicofrisoli.com/userfiles/files/pawewukumuf.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_off0000ec86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC86 | 17624 bytes |
SHA-256: 738216d5b95279cf3c4d3e845644191c72b610e1e98831de478f273880c065f4 |
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font_01_sfnt_off00011a3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13251 | 9960 bytes |
SHA-256: c238546badb35946d66db622d1d397b77fcdb1d39d721e0dbd25ac5c2da0fa6c |
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