MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which are designed as a link farm. Several heuristics indicate that these links point to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://oniceh.ru/uplcv?utm_term=mov+to+mp3+free PDF link annotation
- https://intervalhousehamilton.org/ckfinder/userfiles/files/wufiwujeranewimobufa.pdfIn PDF document text
- http://ji-tien.com/userfiles/file/mogurekewinetekaro.pdfIn PDF document text
- https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/powulumipukojalume.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/96193113545.pdfIn PDF document text
- https://cfacgroup.com/uploads/FCK_files/file/62078315508.pdfIn PDF document text
- https://meritumptt.pl/dokumenty/file/muxisilafebilogodiwugi.pdfIn PDF document text
- http://piotrkowska77.pl/zdjeciafile/37515961163.pdfIn PDF document text
- https://specializzati.tecnaevolution.it/dataload/ckupload/77406743670.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135cd2cc9844---58938709930.pdfIn PDF document text
- https://k85shj16h-561lt.com/contents/files/83325466883.pdfIn PDF document text
- http://hotelgiottotorino.com/userfiles/files/gepuzi.pdfIn PDF document text
- http://xinghui.co/upload/ckimg/files/202109172121137965.pdfIn PDF document text
- https://mehfermobilsaglik.com/userfiles/file/54353718712.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/jutedeg.pdfIn PDF document text
- https://harley.dataroom.tw/upload/files/masafiwotadukabegeg.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b9cb4ad5f---vezigudakipomibus.pdfIn PDF document text
- http://bixenony.com/userfiles/files/19058423460.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16131d46c2bcfe---nopisulirewinewoxosutowe.pdfIn PDF document text
- http://www.samuitns.com/image/upload/File/70881447449.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/57ugq3s1p48g0kepk5cpl1h4ua/zewixevudagimoditetab.pdfIn PDF document text
- https://subded.org/userfiles/file/rexogujekuvukujetaji.pdfIn PDF document text
- http://gurolmumcu.com/userfiles/file/bizudinivuzexi.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_off0000cfa3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFA3 | 10180 bytes |
SHA-256: 75cad438e061f5c279c7a6cdd7c39bd76fed19425fd41fe3128885d876be958c |
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font_01_sfnt_off0000e687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE687 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fe99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE99 | 16936 bytes |
SHA-256: 7e58e8362e4d925a9c8d9e79184b42b171e5e0cc30cab499b1f1f6404791b966 |
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