MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of 'LOLBin token sequence' and PDF-specific heuristics related to URI and link farms further support its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://oniceh.ru/uplcv?utm_term=watchet+visitor+centre
- http://photo-preiss.com/upload_files/files/mikowapazuwuretitad.pdf
- http://exhibitionchannel.com/upload/jemugalumuserotupixirara.pdf
- https://mtcmultipack.com/uploads/files/tuturagam.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/66164306acdfe772c10a843b36dd01ef/patiroj.pdf
- http://fernandopelosini.it/userfiles/files/35653976558.pdf
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/82201442145.pdf
- http://onlineexpert.in/userfiles/file/wofezokoresager.pdf
- http://airsoft1.ro/files/file/58100607512.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cac59e30363---80410374398.pdf
- http://aimic.com/userfiles/file/61935082548.pdf
- http://zuche0551.com/upload/file/nevefutasaloralenutitu.pdf
- http://creative-format.com/upload/editor/files/85597021100.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa66b5e4104---31372180969.pdf
- https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/e4omkfurf9nb5fhlgq7fpqlm2o/8303378235.pdf
- http://pwr-tech.ru/userfiles/file/jamojuroduba.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/23929678662.pdf
- http://www.urbanwaterways.info/files/82715084370.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99853399111.pdf
- http://architettoseneca.com/userfiles/files/jiwifunuwe.pdf
- http://consade.com/userfiles/file/95282828041.pdf
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/mnveb4bu5qtkac3l51tetefcmd/25233441649.pdf
- http://showpalmedical.com/userfiles/fovidaw.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160827e1eadaf9---xuwamapufu.pdf
- http://showpalmedical.com/userfiles/fovi
- 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_off0000ea29.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA29 | 16792 bytes |
font_01_sfnt_off0001023b.bind4cfcfc7bfc802728b99c85cb7eb8074ac097ccea0e751a6f17c038c2fdec65a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1023B | 17488 bytes |
font_02_sfnt_off0001301e.binb639d70aef93dbfee908d725899ef7a17ea8dc8bd7309da83c0e2d70acd05ff0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1301E | 10340 bytes |
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