MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites and disposable hosting domains, likely for phishing or malware distribution. The presence of numerous embedded URLs and the heuristic flagging of a 'link farm' strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087d9ec64a58---sinarerazakajemeluganaso.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1606fabd1249e5---42097730761.pdf
- https://rajatotogroup1.com/contents//files/tosupejovufitiluruzo.pdf
- https://ksboutlet.com/file/files/88904199777.pdf
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/16daf9cf53dc39bd4ec70f569ec0ad3e/54602194784.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/au7j81qn0av6939hdvi8q31922/xisubanerujemivijelesatat.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/lfv6hbvtjqccll03u5nttg4m34/57444996772.pdf
- http://glenbrooksouth1970.com/clients/1/17/17fc1bd13d5538a69f39d58c869d2fc5/File/nukilokew.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8d93b0174---42691818086.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608471859819f---zeguvegajubo.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5af925e1b---37720690924.pdf
- https://allcreaturesinc.com/files/files/tidadu.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/4deee916479cea32358fafa7016d3e1d/25571734729.pdf
- http://gemculture.com/userfiles/file/56682814691.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/fl8i1fkhsfi05vmg8kbfh61ll4/jepuguduxafikax.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c45a379056e---wizuniw.pdf
- http://pulsarvn.com/media/ftp/file/zubasipilunivusadugel.pdf
- http://constantemail.com/userfiles/file/1624647568duropav.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/5eb4cf91155211066b6e39336afe4fb4/94991533601.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/s5be1749tbkdhsq62udtf5gsi7/5487380494.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/182079e4b937ec1f2bfc0ce64ac67086/nazosebimiwab.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/uf16nis8kh4obbmlvfch63hqg7/tuwijifonunefemetoniki.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/3852927275.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=je+peux+in+english
- 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_off0000d3e6.bin3f7a2f98f10e25864c32b3c266e6f600423d14076f16e9066c03a6c285ea59af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E6 | 17340 bytes |
font_01_sfnt_off0000ffa9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA9 | 16792 bytes |
font_02_sfnt_off000117c0.bin0ea509a1e49ef0d3b0db6d1133b688572446013fa89f28cfe1bd7f8283ee2ef6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C0 | 10244 bytes |
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