MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs likely serve as lures to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 http://sochi-vitrazhi.ru/ckfinder/userfiles/files/64370911963.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/33529224688.pdf
- https://nutstudio.it/userfiles/file/53588822034.pdf
- https://akemi.ro/hirek/file/16381564497.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/eaf734281130d4f02b50d29f405ccd65/jigazudepikitivikab.pdf
- http://arci-mp.fr/admin/File/fuzuwaxomazanatitoxem.pdf
- http://archi1919.com/smlclub-files/file/sejedufafatejezo.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/600de0655dd23e38532f57c171d7956b/sedubizejegutaxeravirime.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/fab7e1b6f306026ea2922aaef056b8a0/dezetup.pdf
- https://samowar.me/userfiles/files/rowova.pdf
- https://aashianarealty.com/file/1979884230.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/29bf807cf44dc97b496dabd74b00f152/xumowufobuxusamas.pdf
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160753c0e7e19d---nemox.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/c3cd02a8c5e3bddca995729f6f56a036/lututaro.pdf
- http://starringthestricklers.com/clients/2/2b/2b6f34f03d9ccbd43d04a050b3ab825e/File/30317479255.pdf
- http://studiodabo.eu/userfiles/files/tusopowez.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ee4d55bec4f---jofumamojasatiju.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/f3430vg983k552js1uju77prf9/nizizeforifugubidiwakufi.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6bd1f035fc---88273226217.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cdd86555450---mupaxaseta.pdf
- http://volamtuyetthe.com/userfiles/file/femisifanew.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084cb9dbb25b---zebupopudafizipup.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/9prj4kbvs6smll4ov7kp0qhrh7/44952461875.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/f048a54d1d6589e9cc83599e234068bb/dukenojesewanekevobem.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=the+great+stand+up+to+cancer+bake+off+2021
- 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_off0000f8eb.binbc0bb6a5f172930e6fb1159351a16d0b1dbb6bfc1ef95898b284d013a30ab6ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8EB | 11352 bytes |
font_01_sfnt_off00011344.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11344 | 16792 bytes |
font_02_sfnt_off00012b56.bin0e9123a38ee25bac98dc46a3a21062ceffd3002d33ff3db488ce0330424b045e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B56 | 17072 bytes |
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