MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicative of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, with the latter identifying it as a phishing trojan. The document body is heavily obfuscated, preventing analysis of its direct content, but the heuristic findings are sufficient to determine its likely purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://oniceh.ru/uplcv?utm_term=what+is+a+synonym+for+sovereignty PDF link annotation
- https://charming-dc.com/uploads/files/202109090636435085.pdfIn PDF document text
- https://rlmahtani.com/userfiles/files/57712555049.pdfIn PDF document text
- https://baoholaodong24.baohohoanglong.com/userfiles/file/linitolufevij.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/50490012093.pdfIn PDF document text
- http://aaas.handyfriendship.com/upload/files/vimexufuxiguvukudax.pdfIn PDF document text
- http://m-s-g.ru/userfiles/files/ziloxelobisigilagusu.pdfIn PDF document text
- https://rdsdealers.com/ckfinder/userfiles/files/29063443734.pdfIn PDF document text
- http://satunatc.ac.th/ckfinder/userfiles/files/xaximawekinoxepugem.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/fevetoj.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/ziwivixiw.pdfIn PDF document text
- https://gloriamus.org/Uploads/userfiles/files/mupivenefa.pdfIn PDF document text
- https://adlinefor.com/home/webagen/public_html/korn/data/file/64412456010.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/3eea9763f8144047c7c5077d88ffb4e6/nepumumifatirunura.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/tapevu.pdfIn PDF document text
- http://businessvaluationapp.com/fck_files/file/63937125864.pdfIn PDF document text
- https://smartbrand.ro/mm/file/bebasejale.pdfIn PDF document text
- http://pickup-ws.com/userfiles/files/likikanano.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135bac2f3d33---gexilanatosusitewedeto.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/69601018691.pdfIn PDF document text
- http://restaurant-lyons.fr/userfiles/file/pabawevasutalebemametu.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1614618567ff97---durezulonekugevopenebot.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16130046669408---lunepowazupa.pdfIn PDF document text
- http://3e3i.com/UserFiles/file///40905087225.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/63817559069.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b620.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB620 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ce37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE37 | 10788 bytes |
SHA-256: c4bc0e26e6116bf9fb3e2c385a8ce000c362798805d15ffbca04778a9a7ab41f |
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font_02_sfnt_off0000e6f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F6 | 17004 bytes |
SHA-256: b9d66067b40cf6c78d0aeae7502f8ce13f72a6e53b2205a775c76478d2129566 |
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