MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised CMS upload directories and disposable domains, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the nature of the embedded links and the heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://allmassage.net/upload/file/20210626091330.pdf
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/89d67d56865270691ea8d52781f1c423/53689384361.pdf
- http://creativeindustries.ru/uploads/userfiles/file/xalojaxodazosetomiwuniw.pdf
- https://camping-du-lac-dijon.com/fichiers/42800560572.pdf
- https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/1861be9e4d34722ed7d21b61d55e824b/romufupupiwipuzesemolamow.pdf
- http://africa-emergence2019.com/userfiles/file/vebajezelorexiwajumu.pdf
- http://ahlhy.com/uploads/file/051001477214.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083010c12241---sigizunupoxosawew.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/n5ooskkqdj5sisup34gjn726ap/jizuri.pdf
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16083d88d1f417---xafexipi.pdf
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/jozenavoriwuliji.pdf
- http://aggengr.com/uploads/CMS/file/67502351913.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/d01e5212195f4d69d75753d0364ef4ea/85311976931.pdf
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/3k8ttkl5qsa8junvqtf9hb0nc0/fasogomamese.pdf
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/b250befca815230b267d1ffe28ab7760/luginetemomeraxifowosow.pdf
- http://montaze.org/democms/userfiles/file/lapewefipafusafep.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/7f6bec65fd79ab3f6d6c042852f2d053/88593475128.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd08898e6dd---14553465096.pdf
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608707c2e72f0---lafarexejaluwigel.pdf
- http://cuatro-pr.org/sites/default/files/file/36194462716.pdf
- http://greenworx.eu/images/uploads/files/petepu.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc8c423c1c---15480037394.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=norma+iso+27001
- 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_off0001000d.bin3df469995c5efd7bce66c7bd95aea12e4449ee1690d49d8e999642d90f6092fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1000D | 19276 bytes |
font_01_sfnt_off00012e61.bin7298706ad401cc7896a93b5da97a72064d0a7dd53f1c0bd7a7b441117b24a074 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E61 | 10208 bytes |
font_02_sfnt_off00014563.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14563 | 16792 bytes |
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