MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which are hosted on compromised CMS platforms or appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, suggesting the document is designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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://laborke.ru/uplcv?utm_term=bond+dissociation+energy+of+hydrogen+halides
- http://happinessgown.com/upload/users/files/lifagasibaveketa.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/16142bc020839b---wisezafobawabinomu.pdf
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/vabup.pdf
- https://khanikango.in/file/23924959316.pdf
- http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/patumuxokunalawodaxo.pdf
- https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/devunimitezetesep.pdf
- https://dukra.sk/editor_uploads/files/68680609917.pdf
- https://ibrahimkoc.com/images/Media/files/80562806204.pdf
- http://ig-einheitsloks.de/medien/file/webofedob.pdf
- http://wadsoda.com/UserFiles/File/wivemi.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16141d933e8207---32264169796.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/a2f93d401addb1d4c91fe80ae624ed6d/lukumowuk.pdf
- https://stormester.no/files/file/rosagipowipetodog.pdf
- http://eiak.org/upload/editor/files/nivudofaluwuzu.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614fc7d126b29---5515876125.pdf
- http://hyundaihungthinh.com/uploads/images/files/85409369513.pdf
- http://guides2alpes.org/uploads/file/59435702704.pdf
- http://cabini.it/userfiles/files/50943205367.pdf
- https://cv-vezouze.fr/media/file/vagejomapixijevanarixilo.pdf
- http://bonsite.nl/phpcmsys/file/94786979673.pdf
- https://matrixx.lu/images/26890595398.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/lokagasegekuxaf.pdf
- http://ros-grad.ru/fck_editor_files/files/66968413851.pdf
- http://sacmacbook.net/userfiles/file/semufelew.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/f5cea7a6fbf7e5155e64c0281df81881/79869407060.pdf
- https://www.bnbtravels.com/ckfinder/userfiles/files/terowekorukikagavubedigav.pdf
- 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_off0000b5fc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5FC | 16792 bytes |
font_01_sfnt_off0000ce0e.bin665d8018d2b9ac814fdaadecfc1c62bfd817c9f9fc4e59ffa9fabcc2226d07ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE0E | 16508 bytes |
font_02_sfnt_off0000f826.binb68ade63c9bc47200029ca7041c7c58c183f48a30206128d01c1a9af0c76659b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF826 | 10924 bytes |
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