MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting a link farm or redirection mechanism. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly support a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://smidgel.ru/uplcv?utm_term=business+economics+and+managerial+decision+making+pdf PDF link annotation
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8f1e81c76---gularudelexi.pdfIn PDF document text
- http://pravkniga.ru/files/userfiles/files/podatefudekopik.pdfIn PDF document text
- http://lanaecoloridabruzzo.it/userfiles/file/vujef.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614115935814e---48659068901.pdfIn PDF document text
- http://stmarysharipad.com/userfiles/file/63102345511.pdfIn PDF document text
- https://conexusinternational.com/ckfinder/userfiles/file/bosopikimuritoge.pdfIn PDF document text
- https://domilot.com/uploader/files/leromamebidusis.pdfIn PDF document text
- http://telecycling.org/files/file/toloperotegute.pdfIn PDF document text
- https://pui-vital.ro/msg_media/file/72361379664.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328dbc574ae---wujovixowolura.pdfIn PDF document text
- http://shimamura-mail-order.com/userfiles/file/87760011127.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/5698196003.pdfIn PDF document text
- https://www.comperat-89.fr/ckfinder/userfiles/files/pokusa.pdfIn PDF document text
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/69fcad9c3f8828b155ba143cb981e382/87632235924.pdfIn PDF document text
- http://senseoftourism.dk/userfiles/file/dodufuzagugo.pdfIn PDF document text
- https://jackyrouxmethode.com/userfiles/file/86763068937.pdfIn PDF document text
- https://censcakmu.org/board/file/files/22166577478.pdfIn PDF document text
- http://gmtshipping.com/attachment/file/70056715644.pdfIn PDF document text
- http://www.hgbehringer.de/img/files/files/9619578449.pdfIn PDF document text
- http://cargologicru.com/sadm_files/nagijikuroli.pdfIn PDF document text
- http://mrtowing.ca/Lawyers/userfiles/file/xavubegodolukozof.pdfIn PDF document text
- http://donateagift.eu/userfiles/file/sades.pdfIn PDF document text
- http://duonglaohanoi.com/userfiles/file/38150032743.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_off0000d340.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD340 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB52 | 16176 bytes |
SHA-256: a4e481990a31b85a645affcbb2f8bb13a458d80bbfc893d6b009b66a60620a46 |
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font_02_sfnt_off000114e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114E4 | 11108 bytes |
SHA-256: cb52429344ba2f42f664584dce6a6df3b6ee415f2c808a243221ffcf2dad2b46 |
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