MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. One URL, https://huntic.ru/uplcv?utm_term=download+windows+10+64+bit+1909, suggests a lure related to downloading Windows 10, a common tactic for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://huntic.ru/uplcv?utm_term=download+windows+10+64+bit+1909 PDF link annotation
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cffaf196a1---kigonozudogoz.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135116a45f99---9667518638.pdfIn PDF document text
- http://telegid.tv/userfiles/file/32493360908.pdfIn PDF document text
- https://matricula.arendic.cl/files/bixurinedosabo.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613914af5fa90---67391504563.pdfIn PDF document text
- http://ky-auto.com/uploadfile/files/tolasu.pdfIn PDF document text
- http://pdww.ru/ckfinder/userfiles/files/zafudemeworijobosi.pdfIn PDF document text
- http://birzebbugastpetersfc.com/files/file/rufadunuwusedelorad.pdfIn PDF document text
- http://rem-stroymont.ru/img/file/turepuwamogan.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5b523dfcd---44663242349.pdfIn PDF document text
- http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/zixubewode.pdfIn PDF document text
- http://tcgardening.com/userfiles/file/2021090612364973499.pdfIn PDF document text
- https://delphin-restaurant.com/ckfinder/upload/files/15701402193.pdfIn PDF document text
- http://solartgaleria.hu/images/file/63091807024.pdfIn PDF document text
- https://girisimhaber.com/uploads/file/furifinabokosurusifarate.pdfIn PDF document text
- http://cozycornerexpress.com/uploads/files/fumadowuxurit.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/leradaxetofiruzurodimozur.pdfIn PDF document text
- http://hftyby.com/upload_fck/file/2021-9-11/20210911102308725863.pdfIn PDF document text
- https://sambelteri.com/contents/files/lisuxiluvovezifijepatode.pdfIn PDF document text
- http://msslink.ru/userfiles/files/26063639326.pdfIn PDF document text
- http://leicesterbiketec.com/userfiles/file/5540753559.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_off0000cd6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD6C | 19096 bytes |
SHA-256: 8072a98828943af2eca062d734d63caea680c878e65e5afe105f7d1b26eae7eb |
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font_01_sfnt_off0001004f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1004F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011866.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11866 | 10824 bytes |
SHA-256: fee8f16e0b1d219ba2e05d1bff73a6f150da5f889db513ed9bf7c53c56ab81e1 |
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