MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the overall heuristic findings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://wastran.ru/uplcv?utm_term=how+to+transfer+from+old+to+new+phone PDF link annotation
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/s552q0ehanl707r6mr6s1r4589/50993256648.pdfIn PDF document text
- https://www.opsclown.it/ckfinder/userfiles/files/9361590734.pdfIn PDF document text
- https://gagiongvitgiong.com/ckfinder/userfiles/files/99768185144.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/wobuwanomunanagonatimuw.pdfIn PDF document text
- https://sabresources.com/FCKuploads/file/56284588296.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/161368728263fc---81428700170.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/3108mo6oqcd02t8fnci97209fj/57321869647.pdfIn PDF document text
- https://supermagnum-bg.com/ckfinder/userfiles/files/tevaviburemovoduxolabilu.pdfIn PDF document text
- http://yigang-lin.com/uploads/files/202109160032033634.pdfIn PDF document text
- http://goldartline.ua/userfiles/file/nudoniv.pdfIn PDF document text
- http://surveycook.com/upload/tmp/202109/file/tikemidalabapavibenar.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614f53e829288---12317671848.pdfIn PDF document text
- http://navrattan.co/userfiles/file/13809300862.pdfIn PDF document text
- http://abwgulfport.com/uploads/files/72947728708.pdfIn PDF document text
- https://xtrafitcoaching.com/www/images/files/97402326214.pdfIn PDF document text
- http://cofetariafraguta.ro/UserFiles/file/39762675827.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142d232bff46---zovep.pdfIn PDF document text
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/gusadiluzis.pdfIn PDF document text
- http://hakanhurdacilik.com/userfiles/file/zatizawivutopawirujesi.pdfIn PDF document text
- https://fsreloading.com/userfiles/files/fasubediroxu.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/6e5e63b3c22e26edae17d8863a6cd25d/nipodonemexavufor.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16144eb41bc34d---46131716025.pdfIn PDF document text
- http://loscogliodifavignana.it/userfiles/files/kikolulow.pdfIn PDF document text
- http://www.abcklima.hu/data/editorfile/86814066441.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_off0000b068.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB068 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c87a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC87A | 14712 bytes |
SHA-256: bc05cb97a8124e9101551dc6a33eb3edd2faddb58f148bdf32f73750cb0ab368 |
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font_02_sfnt_off0000ed55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED55 | 10748 bytes |
SHA-256: eafd029ff9beb96f3ab43211ed40e5088fe925192851b26713a457e54a061039 |
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