MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs that point to various websites, many of which appear to be compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's purpose is to act as a link farm, likely for SEO manipulation or to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the embedded URLs and the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristic suggest a potential for further malicious activity or redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://axwelindia.com/uploads/56747807018.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c2caa33f031---45390868894.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/c232a7e7c9829342d7a844e3a1c8af33/77945016404.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3673edc78---japelirozazewogupetu.pdf
- http://ceresasrl.it/userfiles/files/ratamibenepako.pdf
- http://slstudio.it/userfiles/files/15929320146.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf0beeb536---1598900068.pdf
- http://richfieldhighschool1969.com/clients/868116/File/namoz.pdf
- http://toyotarentcar.net/FileData/ckfinder/files/20210618_E6D40A2DD09219F3.pdf
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/160856fe1a6b36---97167320165.pdf
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/debujiwawagomib.pdf
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/11719545a2868dd9a38d746a9aebc6cc/lizuzabiwem.pdf
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/70bc21406835924c3f7712aeb79de1e8/68351481141.pdf
- http://kadh.kr/bobod/upload/file/nuvemevalesepo.pdf
- https://signika.pl/Upload/file/baxelumuvij.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32dc9ed2cd---fegawukabikosili.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2274b48ed8---36405344448.pdf
- http://grimastone.ru/files/42468629747.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5c54e73337---98402072562.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/h1s631pie9t0ipjk6gr55u06mk/zavit.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a409abb48---jirizikegani.pdf
- http://geerhannutpourreussir.be/docs/upload/files/wugenorobazatodevebudo.pdf
- http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/92949165348.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=php+book+for+beginners+pdf+free+download
- 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_off000103af.bine7e6da4e320b94d7752b68084e818b733e0492bf86e7c650b5b7712791d1fd58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AF | 17620 bytes |
font_01_sfnt_off00013202.bin8e0e9f3fd76b2c1ba96a21bb40c6509602427995071b5b4ef6e93e9f4bc61c79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13202 | 10996 bytes |
font_02_sfnt_off00014b1c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B1C | 16792 bytes |
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