MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains numerous links to external resources, many of which are hosted on compromised websites or disposable domains, suggesting a phishing or malware distribution attempt. The heuristic 'SE_INVOICE_LURE' indicates the document's content is designed to deceive users into clicking these links, likely to download a second-stage payload. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://garglob.ru/uplcv?utm_term=class+11+ip+python+pdf
- http://hoclaixebinhthuan.com/upload/contentFile/file/1925672096.pdf
- http://aaaexpressheating.com/userfiles/file/tewubedenulofevifex.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160de8e50682a9---nifupuw.pdf
- http://geologocarmignani.com/userfiles/files/17658679993.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb3dbb9771---pegesodofejulodexofuzub.pdf
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/4c8717065207273a0fc65ee95aa24e78/25407902612.pdf
- http://chongros.com/userData/board/file/34899829018.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084c4e59be0b---wutujireredudazarilozene.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/8e12c92f9bcf033f7507261af0f75cd9/tozowozavorovarusaf.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/3v4e445pduvaaadjbbbtac3rc5/99770402556.pdf
- http://gwhs79.com/clients/867100/File/46810969254.pdf
- http://benefielddarrenfordhicksunited.com/clients/2/21/2186b72972973349411f8b90e6071e14/File/62557021644.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/lrigcvs3nvob7tf96pe0rpj92v/70805915350.pdf
- https://elnativocoffee.com/silver/upload/files/10432925286.pdf
- http://przychodnia-felinskiego.pl/uploads/editor/file/teriwinixefomis.pdf
- https://bustotoronto.com/userfiles/file/14020760277.pdf
- http://fatamorgana.fr/uploads/assets/file/73128583572.pdf
- http://limoride.net/gallery/file/kekumupisomezisapet.pdf
- https://oglethorpeclub.org/~oglethor/UserFiles/file/31046996082.pdf
- https://patoman.ro/ckfinder/userfiles/files/85133463988.pdf
- http://odumakus.com/uploads/files/6814192803.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/329c095c2627ca686deeccfe5bf1ecab/kodobus.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/jrq86c550av5ruul1ivv79rn3j/24459264689.pdf
- https://powermailer.in/userfiles/file/rivetadugodobewusa.pdf
- http://rafaelstore.ru/upload/files/puxalatawamaz.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_off0000e05f.bin5774e7e0ad922d5bdabfb2d35165bd46057ed22f852c7272423c2b4234a2db7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE05F | 17948 bytes |
font_01_sfnt_off00010f0d.bine6a1c532bfb5f9786e49d598222c6ac4d710a169149d542e93f801c3c07d64a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F0D | 10560 bytes |
font_02_sfnt_off00012723.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12723 | 16792 bytes |
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