MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple websites, some of which are identified as compromised CMS uploads. The URLs suggest a lure for downloading a game, likely to trick users into visiting malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent.
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://pengyou-english.com/FileData/ckfinder/files/20210911_78E94FBC83033281.pdf
- https://hanurichurch.org/ckfinder/userfiles/files/17567405264.pdf
- http://hanauhrova.cz/files/6625956510.pdf
- http://ndc-group.ru/uploads/files/48656735501.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/48cbab01d0591bbc754b196e14e910d1/guvoverinewoxox.pdf
- http://www.hon-ro.hu/userfiles/files/suripetufe.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff220aede3---sotosojopurazemeduzaz.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed5b7d84cb---fijejijorebumak.pdf
- http://mylodge-naoshima.com/images/blog/file/nowerifegixarivaberulek.pdf
- https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/62140171841.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f64955925---62459494069.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/90f19698a2f0d7e5b7c7f7b1e38e2707/96892084609.pdf
- http://jarosi.hu/files/file/57568013130.pdf
- http://veterinariomauracotti.it/userfiles/files/89458247150.pdf
- http://lmnn.ru/userfiles/file/92330544781.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2f709a12c---palajalijokaxomep.pdf
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425b9a4f6a7---2415952630.pdf
- http://vzwsportenmuziek.com/content_docs/beredafebukuwej.pdf
- http://irpuyesh.com/cache/fck_files/file/nodokedukidavafigilekevu.pdf
- https://soswzgierz.pl/web/uploads/files/vinivogugin.pdf
- https://varbackaforskola.se/ckfinder/userfiles/files/7822287314.pdf
- https://babetravelling.com/ckfinder/userfiles2/files/fabiwurepubidoxowerivu.pdf
- http://hzbmsj.net/images/upload/File/43422221138.pdf
- https://veneziashowroom.ro/app/webroot/files/userfiles/files/9580948765.pdf
- http://xedaphcm.com/luutru/files/romexegexedixarinifu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=shadowgun+legends+game+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_off0000d6be.bindc3770e03aa98ed5198a26623ccc410902c7f922441ab9788a796a50bbe0c802 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BE | 10664 bytes |
font_01_sfnt_off0000eed3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED3 | 16792 bytes |
font_02_sfnt_off000106e5.bin8265b21ecd861a729fb6a7bf1f763c00a7c00faa537fbae2b92c454d74b9c03a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106E5 | 17712 bytes |
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