MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous URLs, many pointing to compromised WordPress sites, suggesting a link farm used for phishing or malware distribution. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611027b7b9c55---68601166267.pdf In PDF document text
- http://hanleyresources.com/images/degazagadesugi.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609b25e30d96f---82918766946.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/0b3cb0cd0b277188286c52f0f7ed41eb/resupipakaparirimuxikif.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/64069602132.pdfIn PDF document text
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/88ad54ae3990fadd1caa99461e8738ae/66841177878.pdfIn PDF document text
- http://jogforbigt.com/clients/6/61/61f7a61d17da296148a50ccd59c4a139/File/ratotefeja.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/ed75e73adb7c40483dcac4518bec9a2e/serepezibiru.pdfIn PDF document text
- http://xboxheerlen.nl/userfiles/file/88314835247.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1613826be0ba1d---kumorufowed.pdfIn PDF document text
- https://longislandinvestmentadvisors.com/nini/userfiles/file/555528139.pdfIn PDF document text
- http://ozari-ua.com/files/file/24778228574.pdfIn PDF document text
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/pl7vacge9dng6nfv49m6vmph87/nirusoluvosozipajax.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/81b8dc0227a4958a87434fe2f3361877/65197768049.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/e39140370e17998533d6231103ed90ef/46302169112.pdfIn PDF document text
- http://badaranquehablar.com/userfiles/files/bapolakusara.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16a71b603---bopiravanebufefofupawosu.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/7a7613596bc6f9d378cfe78d06fb1e71/37961882626.pdfIn PDF document text
- http://oilandgaswork.com/userfiles/file/47719582835.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161084751d36d5---55559337763.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080f345bd9f0---16992701913.pdfIn PDF document text
- https://gilbertems.com/videos/file/nidivutibuwagi.pdfIn PDF document text
- http://retco.ge/ckfinder/userfiles/files/52216212418.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a8317c515---86790243576.pdfIn PDF document text
- http://zonweringbelgie.nl/ckfinder/userfiles/files/41973246410.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=the+train+georges+simenon+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000152c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00016ada.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16ADA | 10860 bytes |
SHA-256: 5bd51d820a321e9db63af6e0a23ae7a93f067d9683b8ed92fef21da75e44d4a0 |
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font_02_sfnt_off0001838d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1838D | 20968 bytes |
SHA-256: 21c50ceebfde4a587704424e90e243a67423e13a3baeaa472698d2c0e19f129b |
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