MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of 'utm_term' parameters in some URLs suggests an attempt at SEO manipulation to attract unsuspecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://catamma.ru/uplcv?utm_term=how+to+add+pdf+in+excel+2007 PDF link annotation
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/f207fbd4e43dae89118f8c6e72d23ca5/96754380148.pdfIn PDF document text
- http://catherine-massage.com/ckfinder/userfiles/files/11300881340.pdfIn PDF document text
- https://arhometutor.com/userfiles/file/dobibedubemodefetame.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e28d4856f2---69946305773.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/1linnlmomtc4e9cg5u6m7hbumj/lobagozutasetigi.pdfIn PDF document text
- https://afayl.com/userfiles/file/47078034881.pdfIn PDF document text
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609691779f9b0---gabezakixib.pdfIn PDF document text
- https://nhaccugiare24h.com/uploads/userfiles/file/85713286355.pdfIn PDF document text
- http://z500.si/files/31353743914.pdfIn PDF document text
- https://cissud.com/uploads/ck_editor/files/pupumumav.pdfIn PDF document text
- http://jarosi.hu/files/file/81750512837.pdfIn PDF document text
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/oermau5b021vq8030ou384jsc7/liweditagobefikeron.pdfIn PDF document text
- https://cmflower-kkc.com/ckfinder/userfiles/files/rezelu.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210617215132_krbpo7.pdfIn PDF document text
- http://jolanyee.com/upload/files/202108160448592530.pdfIn PDF document text
- https://szabobuszrendeles.hu/files/files/xalapebalofaket.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/pe4942brsqf314c5o6p3nbbi0p/61680622233.pdfIn PDF document text
- https://anitt.in/ckfinder/userfiles/files/kibevarixofagukava.pdfIn PDF document text
- http://bidmitt.com/img/files/file/8651792777.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/d039e6955c42ea186c46c9c37c7a2ec6/difogumisifupomijelu.pdfIn PDF document text
- http://anhbanglaw.com/userfiles/file/70119709842.pdfIn PDF document text
- https://holcom-solar.com/webroot/img/files/51552806446.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_off0000bf34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF34 | 10816 bytes |
SHA-256: 5aad8b42bfcf335e051559167975c0fe794127d1bf6333532252658a70b4907d |
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font_01_sfnt_off0000d85d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD85D | 16876 bytes |
SHA-256: 514658638199c94ed2885fd69726cc3f90582cf2a8b596dfe38fd29eddb38f25 |
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font_02_sfnt_off00010321.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10321 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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