MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The primary goal appears to be redirecting users to potentially malicious or phishing content, leveraging a technique often associated with SEO manipulation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://www.corazondelsol.es/ckfinder/userfiles/files/26919041658.pdf
- https://designmaster.in/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/66449634854.pdf
- http://gk-eventus.ru/admin/ckfinder/userfiles/files/28875704395.pdf
- http://balletpanov.com/uploads/files/52851782553.pdf
- http://e-motyle.natura2000.pl/imgturysta/files/wufuduzagawotebifat.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363189a3442---38761783512.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2e46b3c0b---64952143226.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/280ca49de505d9693fd3497ba80dee22/robibomozuxuvimonimo.pdf
- http://chetaomaynganhnhua.com/uploads/files/sobol.pdf
- https://marathonroller.com/userfiles/files/11441472139.pdf
- https://kawanmto.com/contents/files/zidejezurobi.pdf
- http://hongsung114.com/files/fckeditor/file/4700825912.pdf
- http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/27100364756.pdf
- https://phunhai.net/upload/files/98474801129.pdf
- http://fields-on-earth.com/images/blog/file/11362864599.pdf
- http://verynailscm.com/user_img/file/29193377107.pdf
- http://riviera.az/userfiles/file/rumagiz.pdf
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/83728375193.pdf
- http://razzledazzleevents.in/userfiles/file/33987638688.pdf
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/99887992409.pdf
- https://ph2020.org/FCKeditor/file/metabojuneru.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363cd6b5146---pomabaguwajawid.pdf
- http://spc1991.com/ckfinder/userfiles/files/18780053177.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=asus+transformer+pad+tf103c+a1
- 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_off0000d5c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C1 | 16792 bytes |
font_01_sfnt_off0000edd3.bin663be522ae007812d7f127fb4b1b1f4734ba9337b3f826d61af63ec2a0b4e735 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD3 | 18324 bytes |
font_02_sfnt_off00011d8d.bin547719e5446bd9b18f613c1d0b00012550403a56b7c29404b740066337610cfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8D | 11068 bytes |
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