MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external PDFs hosted on compromised or disposable domains, suggesting a link farm designed to distribute malware. The presence of a download button lure further supports a phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://jwconsult2005.com/file_media/file_image/file/11462609281.pdf
- http://kythuatviet.vn/uploads/userfiles/file/vixepozop.pdf
- https://juvelyrikoscentras.lt/Files/file/wupekeg.pdf
- http://dorrstrechy.cz/UserFiles/File/8300319303.pdf
- http://balone.net/_upload/file///96436667544.pdf
- http://peak-experience-europe.com/images/blog/file/bugup.pdf
- http://hungthanhauto.com/luutru/files/82327591722.pdf
- http://metaglas.kr/userData/board/file/jigubisa.pdf
- http://vietnam-intraco.com/webroot/img/files/gorupinuropafeg.pdf
- https://standsimulator.com/ckfinder/userfiles/files/67818090498.pdf
- http://sungwoneng.com/upfile_editor/2021/files/7619548443.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/6f8be61557f5870a03e47bf72a689c83/femawixababinimup.pdf
- https://rubyyadav.com/nbloom/fckuploads/file/nimisuporinakajorutalofa.pdf
- http://hmsendo.pl/uploads/editor/file/16129884633.pdf
- http://patrick-vallot.com/upload/files/jofipopugapurasefakamaxeb.pdf
- https://fainitelecommunication.com/public/editorfiles/file/94382961861.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/dclnagl08ls27nsja481rubsos/xazotojidilizuga.pdf
- https://thibiditrading.com/public/userupload/files/nujuniroriv.pdf
- https://karapinarinsaat.net/userfiles/upload/file/86646664283.pdf
- http://huichem.com/ckfinder/userfiles/files/bajalogetorapurabatowuv.pdf
- http://gwtcs.org/Content/uploads/files/lagotuko.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614978c941fc3---bitamofadudub.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=samsung+galaxy+j1+ace+flash+file
- 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_off0000d2f8.bin388293561cd8053a9156279f9f96fa3b2231f160d6c515ae331b62074f2d0ff4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2F8 | 17488 bytes |
font_01_sfnt_off000100aa.bin18e23848bfa3cffcc107e0a1ae5610185bbb7a37eb5a1b43036d96c3d9e42e63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AA | 11036 bytes |
font_02_sfnt_off00011a2f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A2F | 16792 bytes |
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