MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that function as a link farm, directing users to various external websites. Several heuristics indicate that these links are hosted on compromised CMS uploads or disposable hosting, suggesting a malicious intent to distribute or mask malicious content. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=mortal+kombat+11+hack+android PDF link annotation
- http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/filozijemegeguvotimofat.pdfIn PDF document text
- http://joyandwowbook.com/upload/file/69202201548.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421a2256aac---niwavizipebexez.pdfIn PDF document text
- http://mishelik.ru/userfiles/file/94252866001.pdfIn PDF document text
- http://shyjjc.com/v15/Upload/file/202192115839776.pdfIn PDF document text
- http://vaonhaphatphap.com/images/uploads/files/65930375563.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/17338249144.pdfIn PDF document text
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd662c928---wipenu.pdfIn PDF document text
- http://hak-al.com/resimler/files/5710206037.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/57289714679.pdfIn PDF document text
- https://x-software.cz/data/file/wawugoguvi.pdfIn PDF document text
- http://hevolta.com/upload/file/27038529637.pdfIn PDF document text
- https://greenfuturevietnam.com/Upload/files/31077419783.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb9b786590---28007992988.pdfIn PDF document text
- https://lordoptika.hu/files/files/28693450712.pdfIn PDF document text
- https://littleitalypizzany.com/nbloom/fckuploads/file/87360965179.pdfIn PDF document text
- http://urgentcarepb.net/userfiles/file/gasawodazez.pdfIn PDF document text
- https://anctools.com/ckfinder/userfiles/files/2790727944.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/tarodutipegaj.pdfIn PDF document text
- https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/semizugalusatekederaf.pdfIn PDF document text
- https://justforjetscatering.com/userfiles/image/files/timomexovajewokuliseko.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/mitezujekovewoze.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/50425916048.pdfIn PDF document text
- http://sciattella.net/images/file/wagola.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_off0000d546.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD546 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED58 | 19328 bytes |
SHA-256: 55c0e45762f14852025188abb9ef3ae7c8f4d7544b49b131136bb4e6db7d5326 |
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font_02_sfnt_off00011f86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F86 | 10612 bytes |
SHA-256: 2473a1d5aeee7a5497d9004de76eb0d4d7d7659725f1e0c0e20b300f2c7e431d |
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