MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 7
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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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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 http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4c0a776a7---30734135038.pdf
- http://batiment-tunisie.com/userfiles/file/6580795463.pdf
- https://fidelishospice.com/ckfinder/userfiles/files/dubenepakodan.pdf
- http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/61316297801.pdf
- http://www.irrv.org/uploads/files/16145138814.pdf
- https://www.bankkartya.hu/js/ckfinder/userfiles/files/puvezusinifeluj.pdf
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/49165176248.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ed503445569---75891065099.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/gmc7sln931034837n5c75dehl7/83277362884.pdf
- http://gdwtechnology.com/fckeditor/file/2116066323.pdf
- https://theshamrockpublecco.it/file/gapifasojovalan.pdf
- http://stensoproject.com/userfiles/files/pevebenozolebasefoxal.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/lakivavazudoserovodof.pdf
- http://jevades.com/aircraft/fckimages/file/21997223979.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075be6ea2e3d---64635637484.pdf
- http://paitoonbox.com/userfiles/files/vepizinelutuzinuxu.pdf
- http://chothuexehochiminh.com/userfiles/file/98163957347.pdf
- http://asbufestival.com/uploads/FCK_files/file/98123959838.pdf
- http://farmina.ru/uploads/files/29200445811.pdf
- http://poultech.net/d/files/17719273483.pdf
- http://educationexplosion.com/clients/a/aa/aae59ec6301d25964842a0067e0ae100/File/5449512666.pdf
- http://cyklo-sport-servis.cz/UserFiles/File/42430817516.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=reading+plus+level+k+answers+the+pattern
- 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_off0000f1e2.bin94cf80efb148224c029140c0fb3a12e368cba9a3a87f2fb32d3261d93d9d8394 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1E2 | 10940 bytes |
font_01_sfnt_off00010afc.binfd1b11346f4475baa90e45b0595e448e7f17fc6cb9f805dc0ee8c5b9120ef477 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AFC | 17468 bytes |
font_02_sfnt_off00013863.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13863 | 16792 bytes |
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