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 pointing to compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious content or phishing pages. The ClamAV detection and ML classifier strongly indicate 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://crewmak.ru/uplcv?utm_term=solution+fogler+3rd+edition+pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/cprl0uu5guba94868pk9b01ll1/vovobive.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/9459r07o7nrde25cj2i0sanl20/83245341009.pdf
- http://dongduong.net/Images_upload/files/83545275344.pdf
- http://ownlines.com/upfiles/file/naxezinokizetutesazo.pdf
- http://quangcaosms.org/media/ftp/file/wabifabizutopegarafi.pdf
- http://cortabellanews.com/userimages/58927679747.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/017ad674d2d46267a75bf858b34de692/92346918489.pdf
- http://garage-ys.info/js/upload/files/debenojalovorubi.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613558779c6aa---najaw.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/53f79d1398bbdd33b801a9759c13c8d2/kefejalofabobewopef.pdf
- https://livredart.com/ckfinder/userfiles/files/jubuko.pdf
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161180ad434e71---dadomufotujepel.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f0c307b7e8b---topetetusis.pdf
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/6lti0ahd721g37dut3urp7s3c4/jafuwibaxuzukubop.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/8fcb667c19ff3bd4d1696363cabdafb7/39397505419.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/51bb74f451f9b7b29810e34b78d85fa6/nipuguwafumakegaxelokazix.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/84b295d0fb4543c693dc7d2fff7d334a/fakurogobatejodovuvimis.pdf
- http://zjqzzx.com/uploadfile/file/2021070122112973499.pdf
- https://nevisnews.com/userfiles/pakefofirav.pdf
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/666707cc52494e38a23b971b818fbbe5/1318229290.pdf
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/84390943782.pdf
- http://yasaitogo.com/uploads/files/jebonawabuxisujujubapuk.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610afe50213af---nipax.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_off00011c46.bine1fbe05494f33560f1659c761c6ec21bab470a45f4b8ba4db5746c4128e962df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C46 | 10692 bytes |
font_01_sfnt_off000134bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134BB | 16792 bytes |
font_02_sfnt_off00014ccd.bin0754fb51d8fc113b63f7452585fd35f05100dbf3e32cfad1ec48abf6094a09f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CCD | 18840 bytes |
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