MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many of which point to compromised CMS uploads or disposable hosting. This indicates the file is likely part of a phishing or spam campaign designed to redirect users to malicious websites. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://garglob.ru/uplcv?utm_term=prentice+hall+world+history+student+edition+pdf
- http://savitaco.com/uploads/images/files/varuligeme.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077272bc527b---42906756143.pdf
- https://alyosserspneed.com/userfiles/files/10064234457.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/039ba4bd4f00a7c3ed8495fa572a7441/bumekekomepaf.pdf
- https://susta.vn/userfiles/file/9695748106.pdf
- https://comtraining.cl/userfiles/files/fusivedesidepudit.pdf
- https://feng-shuiworld.com/userfiles/file/70864164030.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608343804adaf---58363724757.pdf
- http://canxetaidientu.com/images/file/6071231668.pdf
- https://beatmuellerfoto.ch/userfiles/files/16970464285.pdf
- http://mojahotels.com/ckfinder/userfiles/files/724326549.pdf
- http://hykylalumni.org/userfiles/90012466358.pdf
- http://atthaya.com/file_media/file_image/file/zobewipapumut.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lulanozuzavukediv.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/fbb2aef4e60017ef0cad2a3527cb0197/rolefiwunoku.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/6868c0c3ac0e7997d6f90a9e0f6222ea/danifim.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8723f4024---62041127238.pdf
- http://sjmhospital.org/files/js/ckfinder/userfiles/files/vewazezezibumepemoperel.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/9bf57ef29fae54369f9ff53a0c05880e/95363214306.pdf
- http://rajeshjshahani.com/clients/d/de/defaee86e9f1fedea086b53a5072ac2c/File/34549601852.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160827f4742734---2576229725.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/960d18189408ce4f4ab9f68d1aa1b967/13951913340.pdf
- http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/hb3ap27qftat68ov3dq3u2o4dlk84fri/84501722330.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- 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_off0000ce72.bin5137b6296aeb644c971a79b007fa743b48e5055a72fa956cae399f1c4e569a6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE72 | 17788 bytes |
font_01_sfnt_off0000fc73.bine0b3eae1cf0d67846393b0aba5baf826e7e672ff448f5ea7d388d9e894ac745a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC73 | 11020 bytes |
font_02_sfnt_off00011616.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11616 | 16792 bytes |
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