MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm on disposable hosting, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically flags links to compromised CMS upload storage. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely to lure users to phishing or malware sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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://pistant.ru/uplcv?utm_term=watch+knives+out+for+free+online
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608d69229e7c9---67291810599.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/44aac25b358136b5f43c928de85e9995/31093079432.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099d0263da36---25758047435.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870667248e3---79868160991.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/8da8eohkgl0pm2on1nc1r7jmiv/rorobabezugar.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/1d83c06beab65e7a6963730258cb782f/78970707547.pdf
- http://bocghedanang.com/media/ftp/file/24041346130.pdf
- https://lawrenceyezersky.com/userfiles/file/pekinajuteji.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/e65458bb1dec874f02db1fbb470d4c66/vonimi.pdf
- http://s8radziejowice-paszkow.pl/userfiles/file/tanidazunanufurobowog.pdf
- https://topjobsnepal.com/ckfinder/userfiles/files/86375825738.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/tdct9au74054uvn1ktfmsf7h7l/josigajezikozedozulu.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606e888f25d5f---buxax.pdf
- http://ashioke.com/images/library/File/latidida.pdf
- http://xinyaoqiye.com/upload_fck/file/2021-6-18/20210618183433104497.pdf
- https://deniz-sogutma.org/img/userfiles/file/33778316656.pdf
- http://berallebags.com/UploadFiles/FCKeditor/20210509185948.pdf
- http://emotionpicturesfestival.gr/userfiles/file/50555372918.pdf
- http://verynailscm.com/user_img/file/43672856529.pdf
- https://edu-mate.kr/_UploadFile/Images/file/5257114217.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d300a4e9ef3---vasobazopodetemudepog.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010b1f.bin5d14c5a09995b743870d9e0a18e8483f01e985868d19f5985919a92c3c22d061 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B1F | 17856 bytes |
font_01_sfnt_off00013a22.bin2960c386b9a9b6fd4ae9c821b23d8d7fb44f8ac5a7ed60b52eb8def5c7d83c93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A22 | 16240 bytes |
font_02_sfnt_off00015015.binff266d43f092a08351bc81975702c11702eb82dee28eb325514c7a9fef15c303 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15015 | 10684 bytes |
font_03_sfnt_off00016899.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16899 | 16792 bytes |
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