MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The embedded URLs suggest a phishing or malware distribution scheme, aiming to exploit user interaction with these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://huntic.ru/uplcv?utm_term=date+stamp+photos+android
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608e51f7db4d4---55212019063.pdf
- http://suamayin.biz/userfiles/file/wubasilorediru.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd2bfaa06b5---89724301831.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8c25d1a41---29430656513.pdf
- http://stalmost.pl/userfiles/file/paxidofiforaxuzodode.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/006cs6e3tiu3u7ce1nnpom0ge7/roduzisupolorujapo.pdf
- http://apexibd.com/uploads/fck_uploads/file/gisadafalorutolugowelib.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/34c9bf4a36b6ff118a0fa16d6282fdd8/tirejowusafexe.pdf
- https://ceral.pl/ceral/pliki/file/lutuxevobinoxesivexoxap.pdf
- http://abogarestudio.com/userfiles/file/65775459931.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/hv1qc3ak5u1pti7dgug9ld494i/49026716249.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/1ebe0e121bd591145a839dce6bf7f2ad/xitisubexajan.pdf
- https://skinrepublic.vn/webroot/img/files/ludozaraga.pdf
- http://cnpair.com/userfiles/file/wozesufuwivifewodolu.pdf
- http://barcabianca.eu/upload/file/10113676679.pdf
- http://brlairport.com/images/file/togavuriw.pdf
- http://logtech.cz/foto/Image/file/tiziretosigu.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/epkuhbeq2q5m0ls4hkissh16pg/najunuzumobidol.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a26c6860b64---73202759049.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/7584232d72f6d7d3d0dcbd736c4a0837/54113232211.pdf
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/81e0e196ceee9bc18e898b19987118f7/lolew.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_off0000df1a.bin4e4da6d7c79d64dc0ce43fea7e74f6e20cb65cfc7feb1cd2e8ab65b080b4373c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF1A | 2172 bytes |
font_01_sfnt_off0000e8c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C4 | 16792 bytes |
font_02_sfnt_off000100db.bin0914af84d32be84caed8369f16a06aa298703cf6dc5a4d93c0f0946fa62b8153 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DB | 10612 bytes |
font_03_sfnt_off000118e1.bin8bfe9133ea38d8de2aaadd3be48be9c3ba7e3ac83792a7da0354faed68dd475e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E1 | 17248 bytes |
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