MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. These links are likely used to redirect users to phishing sites or download further malicious payloads, aligning with the characteristics of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chcial.ru/uplcv?utm_term=mpow+bluetooth+headset+pairing PDF link annotation
- https://machinex-machines.com/UserFiles/File/ninukel.pdfIn PDF document text
- https://nic-n-nate.com/files/files/9020356556.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc7736b6ab---7641553590.pdfIn PDF document text
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/5ct687ifa5apltfpflpm56u0ol/9209659227.pdfIn PDF document text
- http://szpk.hu/_user/file/fosibol.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa783a2871---2340082858.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1f711427a---69958361666.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b006481529---67435622838.pdfIn PDF document text
- http://braciszewska-klimek.pl/fck_files/file/91617162833.pdfIn PDF document text
- https://dentalrud.com/userfiles/file/73543998342.pdfIn PDF document text
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607660a04d54e---29820348901.pdfIn PDF document text
- https://telechips.com/ckfinder/userfiles/files/52094377539.pdfIn PDF document text
- http://kimthienbao.com/userfiles/file/sizerenoja.pdfIn PDF document text
- http://sobinco.cz/ckfinder/userfiles/files/lowibizudimokugewoneme.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ea8f3d98fd---85880583256.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/41242088555.pdfIn PDF document text
- http://flatadministration.com/uploades/fckeditorfile/32193986750.pdfIn PDF document text
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/48945625436.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e9ffc3eaa6---92789922153.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16104e8ee7b7f6---27546609308.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16071a9fc89491---roxulopedoduz.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608efecd57c68---12601100013.pdfIn PDF document text
- http://aftckwt.com/uploads/file/36434820946.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f74344e60---6600131877.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_off0000eead.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEAD | 17516 bytes |
SHA-256: fc3d47e8450435b315d79ef5c7617f9dba5e6a63953148ff06712a26cfc197b4 |
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font_01_sfnt_off00011c7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C7C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013493.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13493 | 10988 bytes |
SHA-256: b0ba32436835dc3a58307c4d87cfa26ff1cf2555ca78d54c71630f69a1f815be |
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