MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised websites, likely intended to trick users into downloading a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of numerous URLs on compromised CMS uploads suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9797
Heuristics 6
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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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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://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/dd2d90258c8bbd87620bee417edc1ee3/14491050176.pdf
- http://diysmart.net/userfiles/file/peruxudepe.pdf
- https://clinicscrm.com/img/files/monijijijuwipopalor.pdf
- http://flatadministration.com/uploades/fckeditorfile/52545553488.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/8nshamjr8gcu1v5bsfc5645pqe/34188148021.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/8c516096092bf4b7994ab60b8e18bfe5/wepubu.pdf
- http://zabradli-znerezu.cz/userfiles/file/21672268061.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/96f35deb51e19659d2d3cc7c0ed6837d/73473431184.pdf
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/3782284f95824458979f367679e673c1/36978286134.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c39525b2c20---82509142784.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608304eb3bc60---nikuroletisiloloketeme.pdf
- http://gayaarchi.com/userfiles/file/20210623214812.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070f21c53a79---xoxagoredemozokonuvojujat.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16094be894b849---22318192261.pdf
- http://muslimofwestbengal.com/mwb/editor_upload/files/fozujaxamakovizanumajid.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8405bbafc---5029202973.pdf
- https://an-professional.ru/img/files/file/wuripi.pdf
- http://laclonghotel.vn/upload/files/39242315571.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160863a70af9b6---fijojobuvalifepomu.pdf
- http://sllight.ru/design/img/upload/file/puxazegavepizora.pdf
- http://tourbusan.net/FileData/ckfinder/files/20210608_8087E89A24EB7B11.pdf
- http://laduses.nl/image/file/funixetutur.pdf
- http://teplospectr.ru/images/files/84059727415.pdf
- https://muguet.fr/sites/default/files/file/19335302879.pdf
- http://mai-colle.jp/userfiles/file/ninusirafak.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff5fceffec---kulelokeloziginepog.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=synthesis+of+nucleic+acid
- 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_off000148c4.bin08e518ec116894d9df4934597df9cfba5892c90bddbffd0a22256d14d845b54a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148C4 | 17516 bytes |
font_01_sfnt_off00017695.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17695 | 16792 bytes |
font_02_sfnt_off00018eac.bin193e6e69731f03ea0865419eb3fc61964b6ed4e0ea379a2999efa6b009cf972b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18EAC | 10760 bytes |
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