MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, with several pointing to compromised CMS upload directories, indicating a potential phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of a 'download button' lure further supports a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://presstone.hu/userfiles/file/xasokijevopepu.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f1c7fc84b88---42844379384.pdf
- https://perfecthospital.net/FCKeditor/file/ginibikuli.pdf
- http://wjcopy.com/upload/files/vanizavu.pdf
- https://airflow-skateboards.com/userfiles/files/latepedoxujinuti.pdf
- http://www.ktgroup.co.uk/ckfinder/userfiles/files/5128250612.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/bodgelhghedl726tl9pj6mv6b8/xegufeta.pdf
- http://nato-denkmal.de/uploads/file/2026043158.pdf
- http://winhazel.com/indigo/ckfinder/userfiles/files/zubogiwafikelidik.pdf
- https://alev.az/userfiles/file/17279558338.pdf
- http://szyuangang.com/UserFiles/file///mesomagiselotofixokidizif.pdf
- https://vozilasavozacem.rs//files/53472145280.pdf
- https://milkyway-vn.com/upload/files/31341955615.pdf
- http://merlegdoktor.hu/tmp/49553452198.pdf
- http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/gagatugafubarinefeba.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/m3ookcgj7iemb8l3hhs0h3hb73/38598794041.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1757d526da---makipejibosawagagez.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/72886515963.pdf
- http://commune-bourre.com/userfiles/file/59947249388.pdf
- http://dannguyetltd.com/upload/files/wowobaselozagomozorupa.pdf
- http://runningrhinelanderrabbitry.com/clients/875187/File/46445095749.pdf
- http://vo23.ru/upload/file/43818550998.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=4856+continuation+page
- 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_off0000cb3b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB3B | 16792 bytes |
font_01_sfnt_off0000e34d.binf1e249d575f35c5faa3ee774d0d057180cfc030a47a50caf6c3f4faf152a76ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE34D | 17008 bytes |
font_02_sfnt_off00010f6b.binadc13f117b5b3943fa2c1b3919c222bbdeeda2b01e8ae09e28ed58758019ea74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F6B | 10828 bytes |
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