MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for executing malicious code. The file also exhibits characteristics of a link farm, directing users to multiple compromised websites, likely for phishing or to download further malware. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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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://pixomot.ru/uplcv?utm_term=call+recorder+for+xiaomi
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd7b4a9077---11119881096.pdf
- http://bjsixiang.com/jingkelun/userfiles/files/20210919141424.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/b7bbfec41ac664a6feebabce3805eb13/dobupoxugiwafopawujakinu.pdf
- http://consoles-a-gagner.com/fckeditor/userfiles/file/93476048305.pdf
- http://monthclean.com/uploads/files/202109031021533554.pdf
- http://huseyindurmuslar.com/images_upload/files/pisekopomi.pdf
- http://alianzablue.com/aym_image/files/woxanaziwodiw.pdf
- https://crbz.ru/userfiles/file/31694672945.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/5a76c6c9df8332e0dac25ff0cee87e77/26706786284.pdf
- https://www.babetravelling.com/ckfinder/userfiles2/files/rosunofakomotus.pdf
- https://terracetemayonetim.com/upload/ckfinder/files/7259407640.pdf
- http://alltechsro.cz/files/sixozonotojutukijuvakav.pdf
- http://citranco.com/users/files/35909493327.pdf
- http://inphilong.com/upload/files/nudib.pdf
- https://brihat-group.com/assets/userfiles/files/18365047834.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/esdnbo6dkn9jpud5e9iv8aoa1t/3316311288.pdf
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/76579090425.pdf
- https://inprovitcaribe.com/ckfinder/userfiles/files/46805059261.pdf
- https://eclearusa.com/images/file/94836077313.pdf
- https://xn--z4qq44i.xn--kpry57d/upload/actfiles/27429496768.pdf
- http://hairfibers24.com/upload/file/nurifezotidupolivugeje.pdf
- https://moraure.net/js/ckfinder/userfiles/files/24177496907.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3ce48c261---92628601583.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_off0000e84e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE84E | 16792 bytes |
font_01_sfnt_off00010060.bin3b12c1fe3167b86070202216cf1e9d061d54a7cde6557df760fb64fc6ae3124a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10060 | 19068 bytes |
font_02_sfnt_off000132ec.bin64980e2a15fbb3deb95dfc0b09abc5bb5757ce924d31d8eaca88c5011f90b342 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132EC | 10400 bytes |
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