MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to compromised websites, including those hosted on WordPress upload directories, suggesting a tactic to distribute malicious content or conduct phishing. The presence of external URIs and link farms indicates an attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=advanced+management+accounting+notes+pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607912de43323---7578491748.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/e7171593f78efd2d94abf1846541aeda/67448427188.pdf
- http://kalkulacka-hypo.cz/userfiles/files/45694995605.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb3e7d48e6---tesukonekuxaw.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/ndkstb9dvgmvmdbngdrlr1k7kq/21076492236.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a998d5d4411---12795499779.pdf
- http://www.pranabkumar.com/fckimages/file/32687740295.pdf
- https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/4e3968c176d741495c26b6146f27f092/66018990010.pdf
- https://sieuviet.net/webroot/img/files/62082609979.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a119aa29651---potogolubexuguzov.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/9136b742efdbceed1e30e8165c442aa4/jenisekejeruji.pdf
- https://avistravel.ro/userfiles/file/wugurudas.pdf
- http://teplospectr.ru/images/files/68840587286.pdf
- http://chinocorporatechallenge.com/clients/6216/File/xejoxebaruribadafew.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160acd44142c3f---81449782561.pdf
- https://jdrum-music.com/uploads/ckfiles/files/xiwafunijejemitox.pdf
- http://anhuizpyy.com/upload_fck/file/2021-5-7/20210507170217140997.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/lvknpo3mrg0oeu2u60cidsisko/nabakibatesike.pdf
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/2f8da1b893448bf10e6c51f456d3a81f/60690276806.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089277e4411c---nuvuguwolutevika.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fefe956736---31060578646.pdf
- http://arch-teh.com/pic/userfile/53747621221.pdf
- http://lubrifianti-auto.ro/files/file/30185614065.pdf
- http://chapelguild.com/images/usr/91379281225.pdf
- http://thedreaminitiative.org/Content/Admin/uploads/files/sivefarubima.pdf
- https://buka.ru/sadm_files/74647198641.pdf
- http://mousike.it/img_ins/files/bopopi.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_off0000cca9.binf31e86e3415965f6d961177cb0c5fed3d04df68f77a0d7a93aa1156e0f56dd32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCA9 | 16836 bytes |
font_01_sfnt_off0000f890.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF890 | 16792 bytes |
font_02_sfnt_off000110a7.bincdc8e83facf9b9456c4c3c436106535c6c45760c9356461b778c85f4ac5b81a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110A7 | 10964 bytes |
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