MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. Heuristics indicate a link farm designed to redirect users, and ClamAV detection confirms its malicious nature. The embedded JavaScript likely facilitates the redirection or exploits a vulnerability to execute a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://kingsap.com/file_media/file_image/file/mujedaroloxunivu.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131db0a694c6---gagofakegasijafolu.pdf
- https://ebal.ro/app/webroot/files/userfiles/files/59292847294.pdf
- https://www.asoriofrio.org/ckfinder/userfiles/files/vedizadexikofuvunaxaf.pdf
- http://postelezmasivu-brno.com/ckfinder/userfiles/files/77847125884.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140047e30233---7971417483.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1614141f5844fe---66745367307.pdf
- https://etonbio.com/newsLetters/images/file/99607151209.pdf
- https://zevkotodoseme.com/upload/ckfinder/files/65058718356.pdf
- http://asea-admin.com/_userfiles/file/20210906045354.pdf
- http://pomodorolennep.de/gfx/userfiles/files/nupogotuxid.pdf
- http://frigotechreina.com/userfiles/files/zitidenoravemobuvemofis.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/eb2e6af967d618acb0606bf7ed39bb65/24867159022.pdf
- http://giaodantanthaison.com/Images_upload/files/kabiforodoxubejowewu.pdf
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/5a92bcb44b95ce7b6650267afa24b3ad/90575785118.pdf
- https://haciendaloscipreses.cl/upload/file/pifeg.pdf
- https://rafaellopezehijo.com/upload/files/11994945707.pdf
- http://sjmhospital.org/files/js/ckfinder/userfiles/files/bunijoxunedilitokon.pdf
- http://sirinthepgroup.com/userfiles/file/zurelamijimawa.pdf
- https://piti.leaddeehub.com/userfiles/files/xiwevuboverotom.pdf
- https://shinko-tw.com/UserFiles/file/7233357976.pdf
- https://indiachristian.org/uploads/files/13767684390.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=golf+swing+apps+android
- 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_off0000fbcf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBCF | 16792 bytes |
font_01_sfnt_off000113e1.bin33cee668110d8bd22d6198f46a857cea1fd1273d420fe521640c4369b3b061cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113E1 | 22312 bytes |
font_02_sfnt_off00014ee6.bin73738a7bd5a2893c8428863223c97345b7a93c958fb2bad4a2ff319d0c3c9474 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EE6 | 10568 bytes |
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