MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress upload directories and other domains, suggesting it's designed to redirect users to potentially harmful content. The presence of numerous external URIs and a link farm on disposable hosting further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/pqua39bsk9j4p0ptbdb147vlq5/93332186255.pdf
- https://hostsolutions.ro/app/webroot/files/userfiles/files/wikisifimuzozekogiporez.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/1828a8dc416c4922960fac583627b723/44022636612.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098da4021a49---82702935705.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/7b9a6f23c08cf0aba2a2cf53fed851f0/73705432478.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/902e04d54be3e3070f3191437b1a52b8/74935038734.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092668bc39d3---bulijulelobigikafudewobu.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160705c492da72---14859034797.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/t5gkhro5egtam2n7lln9fdk3p5/lanijuwozowunawuvomepad.pdf
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/37630156892.pdf
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/461078d60f4c1460de9107daedeb3250/9999271838.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/f2885eea5851688fddca1cb0c8833c66/75746334654.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e7329b696---11843403286.pdf
- http://www.blueoak.fr/image/file/96928507709.pdf
- https://hse.tw/upload/file/poluvemipigobe.pdf
- http://parkhighclassof60.com/clients/871169/File/75509005565.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1e81d6a6e---xesiju.pdf
- http://dancedynamicsla.com/clients/38740/File/jesoz.pdf
- https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/d3702484df5b26f4cae327b0c4c86a8a/moronakinikepoxaxole.pdf
- https://go2germany.ru/files/file/nuxefuduzej.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b7476d435dc---97487403747.pdf
- http://thuduchouse.vn/pics/file/tiluxitisufabibonefa.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d8fca5411---43128897337.pdf
- http://secohthailand.com/file_media/file_image/file/81220672608.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0fdeb757fa---kezuzup.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=common+form+of+plagiarism
- 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_off0000f2b3.bin75febf81fcb221a94e6805f477c1bbc33bcd4d5d6ed92857dc7ca02209138cf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B3 | 16600 bytes |
font_01_sfnt_off00011dcd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DCD | 16792 bytes |
font_02_sfnt_off000135e4.bin7192e74b13cd51e67adc3967ccc7b1b9c5b4244927c6fbd7b74252aed0e1f241 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135E4 | 10504 bytes |
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