MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The embedded JavaScript likely serves to redirect the user or download additional malicious content, contributing to the overall phishing and malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=android+tablet+stuck+in+safe+mode
- http://www.39koratmachinery.com/file_upload/files/numom.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/73298026748.pdf
- http://chinhsuasolieu.com/media/files/gosetatujuwijigoxafekud.pdf
- https://defi128.phpascal.com/userfiles/files/66383704121.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/ed9622f5ff14fc934de44b17d380880a/84625222256.pdf
- http://badaranquehablar.com/userfiles/files/99606682974.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/76eaec0b278948f5a9507140631c1ccf/73441737070.pdf
- http://www.pibmg.com.br/ckfinder/userfiles/files/files/65904023067.pdf
- http://kssi.ir/public/userfiles/file/75033001499.pdf
- http://lg-palette.com/upload/files/97259068420.pdf
- https://jaurrieta.net/USERFILES_JAURRIETA/files/febatazuxivogagudubumixol.pdf
- https://karpzbeldowa.pl/uploads/userfiles/files/91462674341.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/77af3c868fb9f7c8eb981bc7e8c8462f/83179514821.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c8dd135e3e49fae687b56fa8e6aabd84/netorotutijipafilu.pdf
- http://gyndoktors.de/ckfinder/userfiles/files/36017613412.pdf
- http://pieseclimaauto.com/files/file/nilusokuxufo.pdf
- http://vucert.vn/uploads/files/pewawixebe.pdf
- https://ourcampuswindow.com/ckfinder/userfiles/files/99108923824.pdf
- https://ristovski.mk/public_html/upload/userfiles/file/90165843414.pdf
- http://honda-vo.com/upload/file/kapovavifa.pdf
- https://gkia.org/kingkong/userfiles/files/febibijesepu.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_off0000acd7.binb8eeeb636d3b2c17c60c64c507e697c3d5fc138164f1ff14552f0cd1b0223199 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACD7 | 10948 bytes |
font_01_sfnt_off0000c63d.bin5045217eede84df0b4165917b7f80948ac08e16f8d10a10b64de96074cbb5bad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC63D | 16196 bytes |
font_02_sfnt_off0000eeff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFF | 16792 bytes |
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