MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress installations and other disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded URLs are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e9cd7021e---dunilagemimizav.pdf
- http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/temaxadonetilif.pdf
- http://biurod9.pl/public/userfiles/file/putotuponugu.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a758663e018---kaxijujeba.pdf
- http://hokeypokeychallenge.com/clients/7/77/77ac66e313b6cb4bf602f1678accca72/File/20131051708.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/424a98c4329ef1fd3c8c6e078c630766/91247301108.pdf
- https://ekransamara.ru/files/pukefijejowa.pdf
- http://northphoenixmustangs66.com/clients/4/4b/4b49b54eec06ebba3741256e9f3e6f2b/File/92556945040.pdf
- http://xedaptheduc.net/app/webroot/uploads/files/7409700267.pdf
- http://zonwering-belgie.com/ckfinder/userfiles/files/gawixomaginufisopar.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/58da1e90cb5ddf9141f582a0a606779f/89741126462.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160754a605c1fa---79550201608.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608dcda7353d9---31294160560.pdf
- https://bushregenerators.com/userfiles/files/fukarifamatap.pdf
- http://hzzxtl.com/UploadFile/file/20210705024243116.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/a4be5eff38065fb7379740fcc38be93b/voguzowavozuri.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/9mfv7ubboaqttmkqnvev6sefef/65084612232.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=insert+into+postgres+multiple+rows
- 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_off00010a31.binae4447e4f0ca97dfaf2dc7364784b78d80732a66950e279219ef493e99876cd9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A31 | 10572 bytes |
font_01_sfnt_off00012256.bina1e9346ac5c62f354dd0d208495b3f5c2d669c4f1f101784ec10c55c0f0f51c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12256 | 18744 bytes |
font_02_sfnt_off000153d9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x153D9 | 16792 bytes |
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