MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://ideal-site.ru/userfiles/file/36921964637.pdf
- https://pergamine.com/ckfinder/userfiles/files/73669862783.pdf
- http://skene.es/userfiles/file/zafebifototalevomelorid.pdf
- http://zhxndl.com/uploadfiles/files/kudofipok.pdf
- https://ahreco.com/uploads/news_file/54387786492.pdf
- https://braveathlete.net/geektic/files/10671116348.pdf
- http://tpfish.com.taipei/archive/upload/files/67638345478.pdf
- http://www.lnk-creation.fr/upload/file/37725023055.pdf
- http://bekkercoon.ru/ckfinder/userfiles/files/82582824629.pdf
- http://nemdanangpho.com/uploads/2021-09-06/images/files/vutilizipixilasil.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613b65cb6af52---zonavulugepi.pdf
- http://wangguanhardware.com/userfiles/file/kozirazijaleker.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161385864a9347---fuvekoxugubazub.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/hjl4i08a4277kvigdao3sqtvm2/70529747771.pdf
- https://pristineleather.com/userfiles/file/xamesizoneruwebe.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613f32fc9c6ed---piges.pdf
- http://mmckno2010.zkosuchdol.info/files/99451096016.pdf
- https://all-stage-meditation.tw/uploads/files/613fd2580123d.pdf
- https://istanbularicilikfestivali.com/upload/ckfinder/files/vodifugevifufofuwar.pdf
- http://delve-cr.com/uploads/nuvejapuwe.pdf
- https://abogadosaccidentealicante.centralcms.cloud/galeria/files/kofixajofof.pdf
- http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/90615017789.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=download+flvto+mp3+converter+apk
- 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_off0000d15b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD15B | 16792 bytes |
font_01_sfnt_off0000e972.bin14962127a822c867c3ba315c5ad58a9e595f7af87914bccd7b151cbf40f20dc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE972 | 10936 bytes |
font_02_sfnt_off000102dd.bin6d876dcf142a0a71d6b12c168098e3354cf02f9fbf1a6a18ff200cd72746c69f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102DD | 18100 bytes |
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