MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to various domains, some of which are hosted on compromised CMS platforms or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs further supports the attack pattern of directing users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://chcial.ru/uplcv?utm_term=ibs+and+dizziness
- http://onlytech-tunisie.com/userfiles/file/visitakiwuvuf.pdf
- http://hydrem.ru/images/file/pigoju.pdf
- https://dammesliepas.lv/ckfinder/userfiles/files/72977668103.pdf
- https://demo.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/22964627306.pdf
- http://heizler.hu/files/file/kotoxepume.pdf
- http://ck-buhgalter.ru/userfiles/file/13678683420.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b45b82ee8c---peligarafusavo.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/q3snft1bmrc3r2ti5j8eck8lh7/47097939202.pdf
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/kisokumenadureju.pdf
- https://sanagustin.cl/files/21554692958.pdf
- http://garankuccu.com/upload/fckimagesfile/aeaf7f5a09cfcfaa7b317ea35e52f3ef.pdf
- https://alcoquimicos.com/ckfinder/userfiles/files/kosovujawafaxarubido.pdf
- http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210908_122336.pdf
- http://kaiyudachem.com/filespath/files/20210908025637.pdf
- http://dhleisure.com/ckupload/files/rusewuba.pdf
- http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/libuxekutofaxulabul.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/jt82vt9e9ioqgsebbcd20845v5/wumagubazeruwipalodudavum.pdf
- http://ogledalata.bg/uploads/pages/files/70237793365.pdf
- http://pappteam.hu/userfiles/file/68440658555.pdf
- http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/28562074723.pdf
- http://15881588.com/ckupload/files/23473733959.pdf
- https://eminenceconstruction.ca/viking1/uploads/files/91519620027.pdf
- http://slkuang.com/v15/Upload/file/20219761582559.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_off0000e6c2.bin9ece99a0388b358988cdb78d152e9226fd0a77d73f026f16493de0f1d5bc78f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6C2 | 17524 bytes |
font_01_sfnt_off00011430.bin129e91c522206e076e09b51d54317191604ac566522a7c7ff48ca9ddccd9fde5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11430 | 10028 bytes |
font_02_sfnt_off00012a97.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A97 | 16792 bytes |
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