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 or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://infrive.ru/uplcv?utm_term=jojo%27s+bizarre+adventure+pdf PDF link annotation
- http://heydarbaba.org/resimler/files/zekisovikiminimenon.pdfIn PDF document text
- http://aptekadc.pl/userfiles/userfile/22605348744.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/28419571432.pdfIn PDF document text
- http://neza.cz/UserFiles/File/zazipujedosofekuwemiwagex.pdfIn PDF document text
- http://tipkeo.com/js/ckfinder/userfiles/files/15493771362.pdfIn PDF document text
- http://enidental.com/userfiles/file/20210925215612.pdfIn PDF document text
- http://tamker.hu/userfiles/file/53579367423.pdfIn PDF document text
- http://coolscape.info/images/files/80713064099.pdfIn PDF document text
- http://songhandiban.com/uploadfile/file/2021091415365173499.pdfIn PDF document text
- http://www.wiz-fac.com/uploadImg/file/37069584952.pdfIn PDF document text
- http://zenobiacultura.it/userfiles/file///58574971996.pdfIn PDF document text
- http://cdmvt.cz/sites/default/files/42887525411.pdfIn PDF document text
- https://albizy.com/ckfinder/userfiles/files/gixenifakalexexesuxagiw.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/acf28f9db361a685e66bf14461b227ac/82109324202.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/161418f750f46b---8193299925.pdfIn PDF document text
- http://asqcert.net/files/files/fezobumase.pdfIn PDF document text
- http://ride-on-earth.com/images/blog/file/33266535178.pdfIn PDF document text
- http://saeronbio.com/userData/board/file/lupazij.pdfIn PDF document text
- http://aotwresort.info/ckfinder/userfiles/files/favimawokesakob.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/47bc8386f0d832db4d86ecb9dee3e3c7/mozobusajegufexogusesok.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/61934000947.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/51106309339.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_off0000acf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACF8 | 16084 bytes |
SHA-256: 7039a1a6f3d26da05886ba2ede6842d50e8f73d42f492844b9793ce1939b88d5 |
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font_01_sfnt_off0000d583.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD583 | 10968 bytes |
SHA-256: 0a70145807552428e1ea18440f7f2c6d293f152a98c414012bc8539c6b4221d6 |
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font_02_sfnt_off0000eefa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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