MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress upload directories or disposable hosting. This indicates the document is likely part of a phishing or spam campaign designed to redirect users to malicious content or download further payloads. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://inwebjor.ru/uplcv?utm_term=best+stories+app+for+android
- https://nichecnk.leaddeehub.com/userfiles/files/zidesadem.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139785f42c54---zozelomegejaxab.pdf
- http://yoron.net/up/files/88499217804.pdf
- http://sbairs.com/datas/files/somimokejolunarapelerazil.pdf
- http://pro-group.ru/userfiles/files/87279904478.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/161354c7520b25---59184178852.pdf
- http://biosite.ru/images/news/file/dosubopikizamufi.pdf
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/poxudivolisix.pdf
- http://4bzsoftware.com/Images_upload/files/kawusozekokogigaroja.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/161465c3bd9fe9---pulut.pdf
- http://toyotaprius-custom.com/js/upload/files/mozape.pdf
- https://xn--49st2et51duvk.com/upload/files/14797390750.pdf
- http://innotack.com/userfiles/file/gusokituwarowemusab.pdf
- http://tartak-monis.pl/tartak/images/file/regenewidomunazumuji.pdf
- https://eghamatsafar.ir/basefile/eghamatsafar/files/50687912923.pdf
- http://aokisuper.com/ckfinder/userfiles/files/gamaka.pdf
- http://galsabino.it/userfiles/files/54172167376.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/c37115fc41a6b0a609eca4d2c0730e8e/wamomawojawip.pdf
- https://sistemagestiondpr.com/userfiles/file/81452994261.pdf
- http://feldbach-tourismus.at/files/venavef.pdf
- http://newgatedesign.com/Images_upload/files/44029464040.pdf
- http://studiolaviano.it/userfiles/files/pidulugetojozev.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb2c89e8e5---zosakudewigadexoxax.pdf
- 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_off0000fac7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC7 | 16792 bytes |
font_01_sfnt_off000112d9.binb70e64e13a99c945a36a59c2aea55d7fb5035ecc4b6f925454909f3efac9051a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D9 | 18112 bytes |
font_02_sfnt_off000141e3.bin5af5ce0a2a77718380b96189cf7bf5a9d4df530b507dba54789a57cc51f73439 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141E3 | 10500 bytes |
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