MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains a link farm pointing to numerous compromised WordPress sites, likely intended to redirect users to malicious content or phishing pages. The presence of embedded URLs and the heuristic indicating a link farm on disposable hosting strongly suggest a phishing or malware distribution attempt.
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://queure.ru/uplcv?utm_term=puri+and+babbar+solid+state+physics
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c84f678ba9a---32630837838.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d0796aa665b---15504374652.pdf
- http://falconartistmanagement.com/ckfinder/userfiles/files/60482551779.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16081d792b1283---8076963380.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16096eb61eb930---70501452084.pdf
- http://anhuifan.com/upload_fck/file/2021-5-11/20210511110327584442.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160932b6a687bb---29673459941.pdf
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/d2dn7cn1cqts14ugku7c4jjoo9/kezitarinogegolikodenuwo.pdf
- https://clickkedai.com/userfiles/file/70874865129.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2abf3608ac---wepowejipenekapa.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d01aa7b788---gifogoweguvew.pdf
- http://sinproval.it/userfiles/files/28578653557.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/7d6d75a81dc9da03f6af27a1de887120/87288996321.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/61414123011.pdf
- http://autodilykanka.cz/cmsimple/images/file/tukitakaf.pdf
- http://residencecarlofelice.com/userfiles/files/xorawew.pdf
- http://tafgambiatours.com/userfiles/file/20616781161.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/3c2f2384aada9434d46188fe3b2ce896/lafixapitejibaxo.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c6e0e93d2---92055831602.pdf
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c333f62ce3a---7663241194.pdf
- http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sofesasebaxufigewebe.pdf
- https://acronimocostanzo.com/userfiles/file/xixekopexav.pdf
- http://sevoir.hu/uploads/file/72444570639.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_off0000bdfc.bina72395909d2d937cc0c6895d5553e4086df574816c24912156a5fc5be37cfa03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDFC | 16128 bytes |
font_01_sfnt_off0000e796.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE796 | 16792 bytes |
font_02_sfnt_off0000ffad.bin4095926da5d7f958abc9377ab5b35143b3ef23a992f0c0a90962b133d205b5f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFAD | 10964 bytes |
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