MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to potentially malicious content. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a deliberate attempt to obscure the true destination or leverage compromised infrastructure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://laborke.ru/uplcv?utm_term=ufo+vpn+premium+apk+free+download PDF link annotation
- https://faceless.me/userfiles/files/zufuw.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/4583534335.pdfIn PDF document text
- http://www.520amis.com/upload/files/58326022366.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/89404164777.pdfIn PDF document text
- http://ekvatorbl.com/userfiles/file/26427597586.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/161354954b9640---runazamudo.pdfIn PDF document text
- https://gullyracing.it/admin/ckfinder/userfiles/files/dalatakutobigigodinu.pdfIn PDF document text
- http://etkindenetim.com/resimler/files/dorumipirurafef.pdfIn PDF document text
- http://joyear.com/ckfinder/userfiles/files/zikapigajexipanetebenobi.pdfIn PDF document text
- http://dekogard.net/deko/veri/_files/78242099052.pdfIn PDF document text
- https://funcarele.com/ckfinder/userfiles/files/sonisorirepazisetim.pdfIn PDF document text
- http://myepres.com/HotelEstimator/userfiles/file/nebafuzaj.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146320903f1b---42248725734.pdfIn PDF document text
- https://tebra.si/userfiles/file/kasonejuvixotosozetaxo.pdfIn PDF document text
- http://daydeothe.vn/rich_editor/file/mukexepesepudine.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/pajeru.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/9cd939d3246937e8470769c0c0704e1d/bomadixarosagasi.pdfIn PDF document text
- http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wurosiz.pdfIn PDF document text
- http://malopolskiszlakwinny.pl/upload/File/toladorikamurepiwizaxula.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_off0000b416.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB416 | 18320 bytes |
SHA-256: 09fad4a18eb9a77258d3f1e40b768db9f44d3630143dfa5fdfef58dfdb36774d |
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font_01_sfnt_off0000e169.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE169 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f980.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF980 | 10744 bytes |
SHA-256: f24aa432885c1077ef31ac99b53477bab0863b47be75f0659761fbfe8afc9107 |
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