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 are part of a link farm hosted on compromised or disposable domains. These links are designed to deceive users into downloading further content, likely malware, under the guise of a game download. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 https://wastran.ru/uplcv?utm_term=download+game+the+sims+4+android PDF link annotation
- https://zlatartopalovic.rs/files/71782743073.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/dtrs7r5kpll6tvhfqdg62h4p5i/33159181304.pdfIn PDF document text
- http://emekyesiltepe.net/images_upload/files/35460831531.pdfIn PDF document text
- http://doudou.tw/userfiles/files/monemajonaliwoxopiw.pdfIn PDF document text
- http://administratieindex.nl/images/uploads/buwuzakefebejivabab.pdfIn PDF document text
- https://agros.net/uploads/file/kipoximexuxi.pdfIn PDF document text
- http://yourhealthyanswer.com/ckfinder/userfiles/files/18402998122.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/51559286860.pdfIn PDF document text
- http://mientrungland.net/uploads/image/files/99387736127.pdfIn PDF document text
- http://mlsy.cz/images/file/files/43436813554.pdfIn PDF document text
- http://clubsahdianagalati.ro/upload/editor/file/54585134716.pdfIn PDF document text
- http://drumlockingclamp.com/FCK_Editor_Images/files/tafag.pdfIn PDF document text
- http://baggiez.net/userfiles/file/pevedofoxubeveme.pdfIn PDF document text
- http://nagyberki.hu/sites/default/files/fck_uploads/file/54102374596.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/86772810210.pdfIn PDF document text
- http://mansiya.com/uploadfile/files/65016825771.pdfIn PDF document text
- http://permanentnimakeup-brno.cz/userfiles/files/15726308617.pdfIn PDF document text
- https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/geratariwunepovudig.pdfIn PDF document text
- http://muntepa.com/userfiles/files/44655009212.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/v621uhu0chchroq40qgb6tjc2g/vidafesenazumov.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613af5b764b56---webudejuvog.pdfIn PDF document text
- http://daehwa.info/uploaded/file/87538018711.pdfIn PDF document text
- http://tg-focus.ru/userfiles/files/70540110550.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_off0000b25e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB25E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA70 | 15064 bytes |
SHA-256: d644fe3d834a4f96e2c186e176dfa9daf6f51a1d19b33413247c957c519295d2 |
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font_02_sfnt_off0000f031.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF031 | 10860 bytes |
SHA-256: 4168a3694db57eb83951c5b6ebdf8d2961e0b097962d89a872fcf7eda5cd9869 |
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