MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and ClamAV as malicious, indicating a phishing or malware distribution attempt. It contains numerous links pointing to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://synerhu.ru/uplcv?utm_term=30+day+forecast
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609e2d2298e28---18681186679.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/bth0u363bmmfvbmstvluteuvd2/44129226463.pdf
- http://colorfulmedia.de/fotki/fotki/file/21581294360.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/128a900343aa28c1fc3609ac61e0219a/petukitenabujekavifiseg.pdf
- https://vili-al.com/uploads/wysiwyg/files/gawelugifozodolujezo.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160790ca6d0c1c---49406423555.pdf
- http://loaamtran.vn/files/usersfiles/files/94934472413.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/9952598924.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da1b96a55c---girukesepujov.pdf
- https://workinhotel.com/upload/fckfile/jujemujulilepe.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e39ffaa1215---24098152445.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d2bb36ef8---benuvotaxiwejadused.pdf
- https://nutricount.cz/UserFiles/File/12495128649.pdf
- https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/d6822223a43ba1006238b42a1ac2d673/mitumoxozugijupad.pdf
- https://www.adom.biz.pl/ckfinder/userfiles/files/73138461347.pdf
- https://associazionedynamica.it/uploads/file/33645323918.pdf
- http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/roxusitivilopewemoviboju.pdf
- https://facades-et-traditions.com/actualites/file/buzakunekejowe.pdf
- http://weifong.tw/fckimages/file/xerojobuwiduxejupad.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/8516ad81bb43963ba6d225d5a33e499a/mevevekufosevolufegu.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/deedc6226e735288b1d44a99fd2236ec/mulide.pdf
- http://abc-tel.ru/data/File/lejerejenesamaperipavufu.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b8670855a---petulavibapimibomidaf.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/tojabazuposirukowixe.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_off0000e2d9.bin86ca20ed085f578ce4d8904babccf6c78a3aac37784468857e5cd6a5d0347d9e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D9 | 10540 bytes |
font_01_sfnt_off0000fb01.bin414341d6568c30f93068b66c26dd87380ae04c439e4df25d31a3e9c0a41bbdc9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB01 | 16420 bytes |
font_02_sfnt_off00012597.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12597 | 16792 bytes |
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