MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm used to redirect users to malicious content. The PDF structure and the presence of external URIs strongly suggest it's part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4025e4186---99449569852.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/161301bf9ebfd8---21471116220.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1613a85209b5ba---19520690670.pdf
- http://www.mariabeckmann.com/fotos/uploads/files/38143820932.pdf
- http://dalnoboy.org/data/filestorage/upload/files/nurijujaloliraxetu.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f37d081305---lusalib.pdf
- http://ktai.lmg.jp/upload/file/dovikakawe.pdf
- https://sgicorp.com/userfiles/files/xiseliminibib.pdf
- https://istruttorecinofilo.it/userfiles/file/vonawosokuki.pdf
- http://travellerisland.com/files/50642554309.pdf
- http://club-integra.ru/userfiles/file/62364520726.pdf
- http://khachsansapa.vn/webroot/img/files/zexuwijarigilewuwuje.pdf
- http://azizavacanze.com/userfiles/files/28248914390.pdf
- http://medwin.kr/userData/board/file/27521108896.pdf
- http://yenidenyuzlendirme.com/ckfinder/userfiles/files/68848194138.pdf
- http://vibestedu.com/_UploadFile/Images/file/gejisazuloveluvuneli.pdf
- https://marupyara.com/fotos/userfiles/file/29992293206.pdf
- http://ffarchitettura.it/userfiles/files/xurudesufafedaki.pdf
- https://taxfirma.com/userfiles/file/24290813897.pdf
- http://patrickstaxi.fr/userfiles/file/domedu.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133453931e98---jekenodiwe.pdf
- http://lpkgoodframeupvc.com/userfiles/files/77401951582.pdf
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210902_044931.pdf
- https://legend-chang.com/UserFiles/files/likegur.pdf
- https://jakspravnenapsa.cz/userfiles/file/94408900621.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=2+letter+words+starting+with+a
- 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_off0000da79.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA79 | 16792 bytes |
font_01_sfnt_off0000f290.binde2be9132e5331a9f3b074108eb6eb3cb781017dee285df2c4e62c314959dfa3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF290 | 10636 bytes |
font_02_sfnt_off00010ab5.bin2170b1046570767d7603668b072f492b766d286cd05f5a35f93e35164ab7a80b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB5 | 17748 bytes |
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