MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple potentially compromised WordPress sites, suggesting an attempt to distribute further malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download a password-protected archive, a common tactic to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://vgi-vn.vn/app/webroot/img/files/62352668222.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/96bf0b7bde7bb5af940ad557d613f4f4/72527892227.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5b585331e---85950748925.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/1af5b24a28908fdd2bc872deec50d9e3/55739741022.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/7c1a19e2245d166ffe01e1b87e15f0cc/tezimuwovibowepinegeza.pdf
- https://girilawfirm.com/content_files/files/80589557733.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f680c7be68---41244260924.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5b5902799---bifanugesinirijerasavu.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/37bfb98e897eaf34f6961902867118cd/lamivu.pdf
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/7ed204a6dd5117077ddea48f0b31817b/22540187798.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609982064bceb---61487248185.pdf
- https://torgradio.ru/new/files/file/rirolijata.pdf
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/31b757f94460feb05b544009db5492ff/88650542015.pdf
- https://medsplus.us/admin/images/file/18918490533.pdf
- http://doktor-okonski.pl/uploadimg/file/lurojew.pdf
- http://banglatalkies.com/dynamic-images/cms/file/64832572858.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/a33f31b99a7df2c13b6c32e85d7a014e/81440612573.pdf
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/866d733c906a861d1eb666e72cb3a3a7/losepibubilitifatubaj.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/c4546e4f14ba3bfd2e60c112519513fc/13516174365.pdf
- http://forglass.sk/userfiles/file/91640577165.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/q2u00da0d879nt28a1g6jk4acn/ravozuzebemarep.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/7ce40aaf62d53e178c82c64a761a6d92/daloxi.pdf
- http://www.zywawiara.pl/pliki/5528321493.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607924f952c8e---4864932745.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c304ddcbe5c---tawun.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160955273ec806---83961804659.pdf
- https://psiakocky-potisk.cz/webpagebuilder/ckfinder/userfiles/files/38475852105.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+lock+pdf+to+prevent+editing
- 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_off0000dd25.bin5d4a3079cc60b397e5232925a9a542700efa85bcbb54ebc4ca9bb822f933b630 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD25 | 16784 bytes |
font_01_sfnt_off000108de.bin94abc431c530783388705dc19e7ea6a3e72396cbb7b4a2c7bbee82de3834e92f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108DE | 10700 bytes |
font_02_sfnt_off00012153.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12153 | 16792 bytes |
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