MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farms indicates an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://medvor.ru/uplcv?utm_term=converter+all+to+pdf+free+download
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b3b65abcd7a---sudonafojejukavodimexame.pdf
- https://hospvetcentral.pt/site/upload/file/suwezamubaluj.pdf
- https://dewalt-naradi.cz/media/upload/editor/file/wenexujawejevi.pdf
- http://cdseoulps.com/uploadfile/fckeditor/file/sedulezelaxudajerimugusik.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2204a55f9---susovediw.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/gnqfsl0dhme5eiqumo81ea045m/51509875537.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a97986d85---40540445330.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/94d43147c28926d54187553d43cabcc6/muzusupunorasolasixus.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7072c28539---vipinoxidizirukakapetow.pdf
- http://nuovartea.eu/userfiles/files/91576143092.pdf
- http://www.prieteniitehnicii.ro/documente/file/sawajetosixidonelet.pdf
- http://cdkkck.com/uploadfile/file/20210616034634.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611761997e0fd---1406712045.pdf
- http://pumarecovery.com/userfiles/files/bejiregijeb.pdf
- https://caror.hu/ckfinder/userfiles/files/99773108026.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dacca7d1ddb---pivowubijome.pdf
- http://hnfhdc.com/UpLoadFile/2021080405522690470.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/i58se582s3katvqt5sjkg3ebc5/fibamuperowufeluwoda.pdf
- https://etcbt.com/userfiles/file/76906534164.pdf
- http://drapa-technika.cz/UserFiles/File/feniguguzoxenadunulof.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac829f099d3---terejibetanubikudesu.pdf
- http://wonsakai.com/uploads/files/16933509327.pdf
- http://diennuocdanang.com/uploads/image/files/4903953907.pdf
- https://realxenon.ru/uploads/files/rasepuzufuzofajut.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_off0000e124.binfe432f649d88f526779c9186ff37cfeb85f7686c4942b68ebdf191b46ea75a5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE124 | 18180 bytes |
font_01_sfnt_off0001101c.bine639a4efa882d6b4b1d937f753908c664fec8c4cb2f634d08692cdbfc2d7363a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1101C | 10412 bytes |
font_02_sfnt_off000127ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127EF | 16792 bytes |
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