MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which appear to be compromised CMS uploads or hosted on disposable infrastructure. The primary lure URL suggests a download for 'microstation free', indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://queure.ru/uplcv?utm_term=download+microstation+free
- http://citadelcaralarms.com/userfiles/file/17006098524.pdf
- https://artenika.pl/fck/file/sodosor.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/sinilekimimawiroxo.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bfce41710b3---dorevibevurebukeluziz.pdf
- https://avvocatoboretti.it/file/81238445222.pdf
- https://dm288.rs/slicice/file/12226391526.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc989ca0989---dedoga.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/8dbc35f5e99150f5ca0a7e5871ec4634/29220890321.pdf
- https://netshopnepal.com/userfiles/file/duvuparetugot.pdf
- http://lamekatus.ee/uploads/ckeditor/files/24916556007.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607192995431c---32028489684.pdf
- http://aplus.to/userfiles/file/69406173316.pdf
- http://trans-serwis.com/userfiles/file/11394987378.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606dbc6750119---woragewasebemesidamog.pdf
- http://enotecagaribaldi.it/userfiles/files/losomanupetamovezavuziz.pdf
- http://efuturesthai.com/uploads/file/70725013121.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160923b7617cc8---revan.pdf
- http://limuzine.md/userfiles/file/tatuba.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cdc64ab577---gogad.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/ilkiq5o9c79b69ncf9rfbd6dvn/56081122363.pdf
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/hoom4n5ir1u6bld43k11pj8ms7/29221618065.pdf
- http://yuha.be/_files/file/7343229804.pdf
- https://pristineleather.com/userfiles/file/jatujurekugemokat.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_off0000e83f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE83F | 16792 bytes |
font_01_sfnt_off00010051.bin44393955f8c657088d6505a6b47b0a411d1547b002aea727d4560ee3fa830a58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10051 | 16544 bytes |
font_02_sfnt_off00012b96.bin2acf59cc73eeb21daeeb9e51f9724799c8e98f749bf3a3ea3e94b87113b6f5da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B96 | 10724 bytes |
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