MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs suggests an attempt to lure users to malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://chcial.ru/uplcv?utm_term=android+8+wallpaper
- https://www.libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/waxofigutena.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/14ac84587a6b3d11c3a04b7c3d0981da/39988133474.pdf
- http://patrick-jardinage.fr/ckfinder/userfiles/files/61482169633.pdf
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/41482998629.pdf
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210909001503.pdf
- http://instit.ac/ckfinder/userfiles/files/tavepofidipowe.pdf
- https://aromamarketing.md/img/files/mizeralunabonewafoko.pdf
- http://noithatsah.com/webroot/img/files/tavobaf.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/4rp67fkop9t1t879g1176bus85/kurira.pdf
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/51000036165.pdf
- http://magendans.com/imagefiles/file/14600574478.pdf
- http://truhlarstvisollner.cz/data/file/lexirakagapapovaxus.pdf
- http://tramtronbetong.com/uploads/userfiles/file/33296973451.pdf
- http://methese.com/upload/files/72298790233.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f727c2f343---jegotapiso.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/oe6c9gdcbcci4ngiolrvf6lds3/97579264149.pdf
- http://ventss.ru/userfiles/files/getobuduxiluliliwim.pdf
- http://automotiveenergy.cz/userfiles/file/budibi.pdf
- http://etalentlink.com/uploadfile/file///2021090712504021.pdf
- http://mabifitness.it/userfiles/files/98017604250.pdf
- http://zkmeiqi.com/admin/ckfinder/upfile/files/xivobekujak.pdf
- http://thai-apsproducts.com/file_media/file_image/file/mamenafinewa.pdf
- http://xz-brand.com/ckfinder/userfiles/files/wajedas.pdf
- https://hung168.tw/UserFiles/files/84645895227.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_off0000b015.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB015 | 16792 bytes |
font_01_sfnt_off0000c827.bin9e2581e1ce9cb98469ee8338a4dbcea2762f1fc823ee3abec6ed21640a1f2198 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC827 | 15008 bytes |
font_02_sfnt_off0000edf5.binf325f376c27a2cd5a5b0d0e9062a63e0361d2632021d5de7a540ed674c51e7fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDF5 | 10396 bytes |
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