MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to compromised WordPress upload directories. The ML classifier and ClamAV both flagged this file as malicious, specifically identifying it as a phishing trojan. The primary attack pattern involves directing users to malicious or compromised sites through a link farm embedded within the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/ce693c610413f892e0108c9a2b3835ce/36410139831.pdf
- http://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/madejox.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c71ff2c1639---loxifarefov.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084dbc9bbbdc---41976755143.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160941ed49c9e3---7611728827.pdf
- https://systematix.pl/userfiles/file/86725390186.pdf
- http://kibbkw.com/uploads/files/59534015245.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/qr7aqu08s3vtdfjd3somv1gp21/zolexusug.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d298264c453---3437441921.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/50c9162f141e819128b7acb8e9855ec9/56850389904.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607449ceb4593---1184019084.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606d06cf8e378---37333110852.pdf
- https://chief-moving.com/editor_upload/file/26374084777.pdf
- https://dovolena-jiznicechy.cz/uploads/14878443272.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16088d69cbb906---xagakuliwudodosevoluvo.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160981adf1ad66---zafutasokokajo.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/293460c4d09fa668a2d5a8c2e2dae890/45718360713.pdf
- http://vencedor.coop/images/admin/file/jiludejuvox.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160813cd38bb14---devegi.pdf
- http://alituncer.com/userfiles/file/nekotojurunowokomu.pdf
- http://paramountswimwear.com/userfiles/files/81155512246.pdf
- https://projetounificado.com/uploads/files/suwigibalowaz.pdf
- http://katour.ru/admin/ckfinder/userfiles/files/6543117620.pdf
- http://ahxxzx.com/userfiles/202105/file/dalarofatawetarera.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16104924e86220---popirusunowo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=what+are+the+characteristics+of+a+good+creative+writing+programs
- 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_off000115f7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115F7 | 16792 bytes |
font_01_sfnt_off00012e09.binb8541bf7df982fd3867f2f36d4e66c567731e317c157c73ecf386b66ea63d9af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E09 | 19952 bytes |
font_02_sfnt_off00016106.bin914590aaf904ec9ed465adecb6c0edfe86474cc5896c5bb870f0859c65475b2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16106 | 11168 bytes |
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