MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to various websites, many of which are hosted on compromised WordPress installations or disposable domains. This behavior is characteristic of a link farm designed to distribute malicious content or facilitate phishing attacks. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 6
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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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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://usmleworkout.com/files/file/54484376710.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb4f52d381b---48439918738.pdf
- https://akproauto.com/nbloom/fckuploads/file/48955607391.pdf
- https://areicon.com/images/file/fuvekadogesakemesefowake.pdf
- https://vicentinacentroautomotivo.com.br/ckeditor/ckfinder/userfiles/files/fijijubowe.pdf
- https://beyondpins.com/calisma2/files/uploads/14214378747.pdf
- https://edu-mate.kr/_UploadFile/Images/file/fovezinoromimirifemodami.pdf
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/ca28e424e730852789ea2fee239fa257/xifobunupugeragid.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160945e5cb853d---76604922989.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a357270bf8e---15848789892.pdf
- http://homespakistan.net/magzine/uploadfiles/file/poximevadurinozime.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160987b99b64d1---jitunixubanof.pdf
- https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e668a7fb36---guxefakevidomejigoxodikex.pdf
- https://zohopinler.com/calisma2/files/uploads/rosixuwasisogolak.pdf
- http://avandcie-energy.com/ckfinder/userfiles/files/14144633491.pdf
- https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/vd6jlclhds8aljtat9gkhm3tfn/1642201822.pdf
- https://gabinetpro.pl/kosmetyczka/krakow/files/89923528653.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800baf080da---42382209906.pdf
- http://tipiland.net/upload/file/41919189929.pdf
- https://b2cexpressdemo.com/userfiles/file/29066072743.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d7953c639---dakubabekunolewuwimaxof.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=manual+testing+interview+questions+and+answers+pdf+free+download
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f27b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF27B | 16792 bytes |
font_01_sfnt_off00010a92.bin8913ab61b03097bebc738268c6199d18f44b35635c5f0d9be92798f773ded352 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A92 | 11064 bytes |
font_02_sfnt_off000123f9.bin6541d7725412e0661dd6fcb82270414538666f1bbb9ba11dc5eff993cd30becd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123F9 | 17016 bytes |
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