MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The document also features a link farm pointing to compromised WordPress upload directories, suggesting an attempt to host or distribute further malicious payloads. The presence of external URIs and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1831cd468---81681545820.pdf
- https://bursac.net/userfiles/file/wivitufiwavojilelelaleken.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16143713ed0053---27233228948.pdf
- http://kcwoman.medsoft.kr/pds/userfiles/files/javiz.pdf
- http://studiofranzoni.eu/userfiles/files/tibogani.pdf
- http://milwaukee.center/userfiles/file/70526241889.pdf
- https://stgeorgedentalcare.in/ckfinder/userfiles/files/gazuzopirixofavuwipanu.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613401a63ba93---zubobem.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1615749d462b5d---38628474776.pdf
- http://kapelski.pl/userfiles/file/pejonelidibogakizalibag.pdf
- http://tajeer.co/userfiles/file/15860116319.pdf
- http://www.frank-diagn.hu/userfiles/files/guwazoretet.pdf
- http://gospodarstwotoporow.pl/uploaded/file/selifene.pdf
- http://signauction.net/userfiles/file/mevawew.pdf
- https://perfecthospitals.com/FCKeditor/file/bepadalafusobixiwuvas.pdf
- http://transgusto.ch/userfiles/file/56740690751.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614951fed2802---xarofepafefajux.pdf
- https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/mifozotabu.pdf
- http://orderkiwicafe.com/uploads/files/zanup.pdf
- https://powerliteaac.com/userfiles/file/92698680107.pdf
- http://chromoink.com/updates/file/82110055060.pdf
- http://teleinwestor.pl/userfiles/file/fomijevupesenusupa.pdf
- https://indiansabroad.uk/userfiles/file/32671699442.pdf
- http://prakseologia.eu/userfiles/file/wikigitevagivododoxi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=ac+signal+conditioning+system+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_off0000b8d6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8D6 | 16792 bytes |
font_01_sfnt_off0000d0e8.bina90b87d05d9cb303e9fa44e722f5bd937d8ea1e29b20b0a251160f087306293d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E8 | 16620 bytes |
font_02_sfnt_off0000faf1.bin167c3f3ff4677a0a0b3789ee164a27bbcc9668450e4d985b0b99a1a471d829a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF1 | 10960 bytes |
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