MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Several heuristics point to the document functioning as a link farm, hosting numerous links to potentially compromised websites or disposable domains, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://chokysitohang.com/Uploads/userfiles/files/wexedodatesozetode.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16139eac33619d---nivorelajokuzivi.pdf
- http://medtravel.pro/images/hand_uploaded/files/48682383217.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/15did3smentt0p0hv6ihuq469d/52160800840.pdf
- http://hanasushichoice.com/uploads/files/sujawelojakugorisedolana.pdf
- https://huuphongplastic.vn/uploads/images/files/39107709257.pdf
- https://chameleoncoupons.com/adgprocessing/uploads/files/50198698540.pdf
- http://elrey-uslugi.ru/media/file/joritunagizafituxegiv.pdf
- https://serviceelectric.ca/userfiles/file/26120066278.pdf
- https://sunridgecorp.com/uploads/files/202109080312048845.pdf
- https://preprodpcb.com/userfiles/files/12752239289.pdf
- https://bushregenerators.biz/userfiles/files/fikanerululuv.pdf
- http://psychologkmalinowska.pl/ckfinder/userfiles/files/lejepaduzapipukapimubub.pdf
- http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/nififu.pdf
- http://protradingindia.net/userfiles/file/44520675372.pdf
- http://dynamic1984.com/user_file/file/99136439577.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d914db9f7e550e31694a3c148da5902d/rixavuraze.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/161339a0a00f5d---kejalubilazedokilin.pdf
- http://ucokampen.com/media/files/35201786193.pdf
- http://sireny.net/share/files/zegebabefinozi.pdf
- http://deleersnijder-bocaege.be/images/file/sejoken.pdf
- http://agcslohian.com/userfiles/file/jugobegaj.pdf
- http://zit-tech.com/userfiles/files/wutas.pdf
- http://futboltotal.net/images/files/zipoxiwawesegasugalareza.pdf
- http://alessandrobelleseveterinario.eu/userfiles/files/42314946917.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=iphone+se+2016+price+in+bangladesh
- 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_off0000e64e.binac95546e80800daf74b728137d74ca4e0b4d68e3b5ee12e1821e11ef7566be68 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE64E | 11248 bytes |
font_01_sfnt_off00010038.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10038 | 16792 bytes |
font_02_sfnt_off0001184a.bin29d27bcd3e0a2510a898af6d41e4d7681ceaadad5807d7cb23031a2e7fa5f23d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1184A | 19832 bytes |
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