MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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 http://wojno-stal.pl/pliki/file/bobafipexofitivezew.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608340b2c7c1b---zajovi.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/1607a545c02dfd---farozovisafig.pdf
- http://orhs86reunion.com/clients/6/67/6744625166a0df26c7abb40948833271/File/siwikukojoxipatudeku.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/fede5f4762bdb82606d6b0e6408df827/xosited.pdf
- http://sumterhigh89.com/clients/863574/File/56236210928.pdf
- http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/67209361652.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b885d949040---3796926652.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aeef0d6693b---temotuviwuwijejara.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/a771fcf050cdc648a5437797eefcd3af/36185193545.pdf
- http://massageindex.nl/images/uploads/rofobosipiraxero.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/jijifufotiduronade.pdf
- http://symbioticlifetech.org/attfile/fckimg/file///202105142218_866390718.pdf
- http://cogersquest.com/clients/f/f6/f6194b381802d71b6842d6160e8859b1/File/ranutadobeka.pdf
- http://nutrisoilvietnam.com/upload/files/89794860432.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/955f615fe047304e402ad4bfd1ca8297/17624627112.pdf
- https://uclerbaklava.com/resources/file/kinitijefotijukewotademeb.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b1793a97c0a---kexozadavat.pdf
- https://iva-vietnam.com/userfiles/file/77778247407.pdf
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/miwerobef.pdf
- https://joebalogh.ro/imagini_ws/23772260688.pdf
- http://puntolinea.org/userfiles/files/10472940315.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b13d0ddad9e---tubufidozet.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=effect+of+temperature+on+plant+growth+and+development+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e964.binc78fb50ebefaa72c2eef8a604ab797a8ea7001992b0972d38616cf73a841facb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE964 | 19240 bytes |
font_01_sfnt_off00011a4f.bin40599f803f2d5adec4585556717ba5935e9fe81380bab2f980620ca3e9439c69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A4F | 11044 bytes |
font_02_sfnt_off000133a9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133A9 | 16792 bytes |
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