MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is designed to redirect users to potentially harmful content. No scripts were extracted, but the overall structure points to a malicious PDF designed for redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767eb85b663---losekawujatu.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/d0264709895071e30918f1cb99ec39cf/89894521255.pdf
- http://www.urbanwaterways.info/files/49265631484.pdf
- http://jinistudy.com/_UploadFile/Images/file/riramapipumomokifepurizev.pdf
- https://cleaner.pl/userfiles/file/webesirajige.pdf
- https://rowadalbyt.com/userfiles/files/fujaxagazoxiwavagar.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/478e4c16c769f1ac53ac853e37cc5846/58486728478.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4a5ded650---57318256701.pdf
- https://nanyangtextile.com/userfiles/file/22449106574.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f38729561f---58909536569.pdf
- https://lonnebacka.se/anvandarbilder/126/files/33912871697.pdf
- http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/86304949659.pdf
- http://chocoenglish.com/_UploadFile/Images/file/nagitalubiwudigaz.pdf
- http://abpaluso.com/upload/file/tatubifanug.pdf
- http://www.klimavill.com//data/editorfile/wobijalasumiwew.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160754ede83d40---90275810704.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cf2aba64e93---9351894378.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8c8361284---9106062016.pdf
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/e00a1b8d61eceabb27aad57cf01ae4a8/78710811361.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a2305de1de6---16838149669.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/e2a02b677f6f64c3512bf46e8380fe6c/27955152415.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bad90626ba6---51467617881.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160922c6a02236---73893125079.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=periodic+table+review+worksheet+pdf
- 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_off00010216.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10216 | 16792 bytes |
font_01_sfnt_off00011a28.bin73c367b7867dd7f7e4c8748f4e6491d852302f68cd66a4e7cfa51a254c43cb36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A28 | 17668 bytes |
font_02_sfnt_off000147a4.bin40d866397c7bf7238c9c8f750f41e86349fd87bad36abba4606be0543e5d682b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147A4 | 11000 bytes |
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