MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress sites, likely serving as a distribution point for malware. The presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://allytemp.ru/uplcv?utm_term=application+android+scanner+3d
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133cf20cabbb---gabufumadogipevenofa.pdf
- https://insp.biz/img/file/waxogozor.pdf
- http://hndgyl.com/v15/Upload/file/202197057475046.pdf
- http://zygzak.eu/foto_dane/wysiwyg/File/17864927227.pdf
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136958fbae3c---fevukizofufabenilu.pdf
- https://mamotato.ro/userfiles/file/petuzulidoxakikasuza.pdf
- https://guruvinodji.com/Userfiles/file/4673693215.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135577270544---vilef.pdf
- http://mulroyenvironmental.ie/userfiles/file/punuxarisoka.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614178cbc07ec---rarulufon.pdf
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/kuniwudobufofejijum.pdf
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/potezew.pdf
- http://asiancfea.org/userfiles/file/ridomulelotagara.pdf
- https://rumusjitu.com/contents/files/vuvir.pdf
- http://bettynblue.com/upload/fck_img/20210902/file/51816802706.pdf
- http://www.nachtruhe.info/up/files/30841577594.pdf
- http://canadianrockies.info/files/file/36674023447.pdf
- http://www.uc-kushiro.net/images/library/File/92927522831.pdf
- http://aftckwt.com/uploads/file/56416313098.pdf
- http://malifer.hu/upload/file/24444250861.pdf
- http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/matininusesigizituvimi.pdf
- http://mayepnuocmia.vn/data/ckfinder/files/90806842300.pdf
- http://soncongnghiepjotun.com/media/ftp/file/20195407745.pdf
- http://muzycznescyzoryki.pl/userfiles/file/kalarumixumesikugabe.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_off0000bef6.bin3547b166fc8ba67d54c061270f8b2010b80ffbf9b5c48ceff935a92cbdc4603c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEF6 | 16744 bytes |
font_01_sfnt_off0000ea2f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA2F | 16792 bytes |
font_02_sfnt_off00010246.binf72f12698b49a426d365e06fef5a748933c023f008a5cc6ae97633836b7db196 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10246 | 10660 bytes |
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