MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, forming a link farm. One heuristic indicates a link farm on disposable hosting with UTM term redirectors, suggesting a phishing or SEO poisoning lure. The document body is heavily obfuscated and unreadable, but the presence of numerous external links and the ClamAV detection strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://medvor.ru/uplcv?utm_term=bhagwat+geeta+hindi+pdf+gita+press
- http://fautographie.org/images/userfiles/files/29276675048.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/f876e5dec75bc1d088b393599e8ca9e3/nazenujesomubixi.pdf
- http://tcurryproperties.com/konadnew/userfiles/file/malifisuvibifuvom.pdf
- http://residencecarlofelice.com/userfiles/files/jukodafetazuwumimulepevux.pdf
- https://doluhosting.com/calisma2/files/uploads/retitepakole.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e6ae62eff8d---powoxotiwok.pdf
- http://www.agot.pl/upload/file/darowagebufujuwel.pdf
- http://tipiland.net/upload/file/46576126865.pdf
- http://studiostocchi.eu/userfiles/files/6028477716.pdf
- https://elitstroycraft.ru/source/file/87571905078.pdf
- http://polenes.cl/userfiles/file/98613748614.pdf
- http://amsasecretariat.fr/userfiles/file/kavepupapog.pdf
- https://fablab808.com/nbloom/fckuploads/file/zamitu.pdf
- https://northcoteplaza.com/userfiles/file/98480393817.pdf
- http://vanharteyoga.nl/uploads/files/36797189018.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4150d1112e---powunevipupejupepop.pdf
- http://apexibd.com/uploads/fck_uploads/file/5928422080.pdf
- http://chixue.com/uploadfile/file/20210816215536.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/ragopifiki.pdf
- http://iccarrentals.com/files/file/dexenusotagofadesom.pdf
- https://citronixdeflection.com/nbloom/fckuploads/file/sovonivavexure.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d46aca0fbc---43486057621.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c6665beacc9---25025588444.pdf
- http://broeinest.org/ckfinder/userfiles/files/32065341228.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_off0000d8b4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B4 | 16792 bytes |
font_01_sfnt_off0000f0c6.bin317c1fac148354d45ee9eb50dcbb4a68a18c0a31ea76b8e2c7521385c21ff9dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C6 | 16692 bytes |
font_02_sfnt_off00011c79.bin0c3fcb9d715be9fc4567e0c200a44d205c6eab1226792efc3c9e9103adfecad5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C79 | 10752 bytes |
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