MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a tactic to host malicious content or redirect users to phishing sites. The presence of a link farm on disposable hosting further supports a malicious intent to obscure the ultimate destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/nbf71fbqdtkdu4ssnjj7p1bqim/gugupox.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1606eac2640d00---73224841282.pdf
- https://radmangroup-ye.com/rgfiles/file/mulebogivodiduzali.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2f1aabaa0---43135190758.pdf
- http://reicar.dk/userfiles/file/fobaxafowesadaxelekax.pdf
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdaa00809b1---pikuz.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/d3caaf0684c102036aa42fea923a261d/97723736194.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/jb2cvhei82gtl1jmhue5aamdjv/45839743905.pdf
- http://aptchasers.com/FCKeditor/userfiles/file/12298624339.pdf
- http://tunesistudio.eu/userfiles/files/99253471886.pdf
- http://northmarking.com/userfiles/files/76533605753.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607603ee61269---63855728948.pdf
- http://csc0311.com/userfiles/file/20210624124859_0oy3ok.pdf
- http://cesmclassof68cheyennewy.com/clients/82478/File/44590142333.pdf
- https://tavio.ru/files/file/15671592245.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160961d2135050---50725545323.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca8940e8e9---lajatedofoveragofapu.pdf
- http://cocoal.com/uploads/file/wujelodenubabiwerapufu.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f39421a97f---gegurodesirivakidewug.pdf
- https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/1o6q24a9uptro5l5qbhlpu7so2/dimisibipu.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607724e81ae65---sonovoz.pdf
- https://antae.be/app/webroot/uploads/file/pudojimixotetajekafok.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=zell+miller+and+hope+scholarship
- 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_off0000f1ae.bin083d156b65137e184711ef2ec08fe027cb79008986ce59584161e841577aef7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AE | 10644 bytes |
font_01_sfnt_off000109b6.bine017ccb31b0945969b52a6f2e1de15b564e3756c55184b868e6f76f29192a7a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109B6 | 17548 bytes |
font_02_sfnt_off0001381d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1381D | 16792 bytes |
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