MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links, many of which point to websites hosted on compromised CMS platforms. This behavior is indicative of a phishing or malware distribution campaign, where the document serves as a lure to direct users to malicious sites. The ClamAV detection and ML classifier further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://alphamarino.kz/images/news/file/31993571234.pdf
- http://studiodabo.eu/userfiles/files/80972262914.pdf
- http://tsrmmessina.it/userfiles/files/530282521.pdf
- http://cec-intl.ru/app/webroot/files/file/gezofedafogewenowu.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160736a6dcdc06---17114793753.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e47fbf8a714---xoxopene.pdf
- https://etadelloro.it/images/file/41276124542.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/2q0l4io7achbfmnmhrvcisici2/kigokapefogejadulopewuku.pdf
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071e81ce5b63---kogazejofa.pdf
- http://someteme.com/archivos/_20210620101309.pdf
- http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/83716877168.pdf
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/1c946ddcdbe22028c955aaf8bcfca1b3/ganusonujiwewoxojusil.pdf
- http://birnagarcollege.in/userfiles/file/mawetikofo.pdf
- https://abeess.com/userfiles/file/vodixevixojurokapuzo.pdf
- https://gretajensen.com/ckfinder/userfiles/files/nimofujegenaxitaxila.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/v8lae0ogp1qe5e922mol7v5fm1/5839775615.pdf
- http://screen.by/images/file/varuzesaninerotisakajadip.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a326dd3c44bf3aeac55f447c9a03adb3/4124679419.pdf
- http://etenindex.nl/images/uploads/foforojigagiguluse.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160736a16591e8---zowovogemebemisamiw.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e40eec69e---89082109042.pdf
- http://niestachow.pl/data/aktualnosci_imgs/file/55446026549.pdf
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/felejaposirod.pdf
- http://schodylux.pl/userfiles/file/fulobimefebat.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075eb6101b9f---99363057013.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=dutch+dictionary+pdf+download
- 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_off0000d08d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD08D | 16792 bytes |
font_01_sfnt_off0000e8a4.bin85573a9065c22d1be6dd9c7bcb6edb2b61ce3cf0c50bff1d8314d7e7184f5d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A4 | 10720 bytes |
font_02_sfnt_off00010146.bin22f1aaa6146cc637e1c6c06c283dac0bf82908694e33795b8806084fce73b53f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10146 | 17600 bytes |
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