MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://krisoc.ru/uplcv?utm_term=ingenieria+genetica+julian+perera+pdf
- https://247christianity.org/fckeditor/userfiles/file/53307084141622491690.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f500cc8cd2---paxonijuladufi.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/llnhkg623trqhfuujtd9jfhiqb/89510764709.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c0ee71de2---bowogomovi.pdf
- http://atthaya.com/file_media/file_image/file/65757409670.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f396da49a---53282900075.pdf
- http://notarbrazda.cz/userfiles/file/kurofubunibezapawal.pdf
- http://archinfo.ru/uploads/file/627541360.pdf
- http://akicgiyim.com/userfiles/file/24011026351.pdf
- http://tlxzkj.com/uploads/file/101249013927.pdf
- http://haki.vn/uploads/files/34319872657.pdf
- http://gzafjc.com/uploadfile/files/66522195216.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ddb82654b3---wowikururolota.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16075dfefba0f3---xevabixud.pdf
- http://webs123.com/userfiles/file/xopenexater.pdf
- http://serdceprirody.ru/userfiles/file/54901314657.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/44a6043ea98eb8d1bc3a334e65176d2c/278615856.pdf
- https://standsimulator.com/ckfinder/userfiles/files/wuwifevasotigedon.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613177a75f70d---96519417481.pdf
- http://yuanjen.com/ckfinder/userfiles/files/85142334970.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16114967641bf7---88497323108.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/9fbc4b50c238421aaeb44e4aef834ca5/56493398460.pdf
- https://clumba-indoor.ru/files/files/famurelono.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/aa689a4faae8bff0b1dcfed26c085373/lomime.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_off0000bc40.bin717273162f465da1d4dd489a954ab4ddf39c2dfb243f00b49ae8f7bd2644810d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC40 | 10688 bytes |
font_01_sfnt_off0000d4a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4A0 | 16792 bytes |
font_02_sfnt_off0000ecb2.bin16f705ddd3d49961e9ef6f69cc397f009dd9f45b24a1840e2b5237e60bbb15a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB2 | 16732 bytes |
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