MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware delivery. No specific family could be identified.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161422eaf4ea05---kuxolawaxelirawagoruf.pdf
- https://lwim-ouargla.dz/ar/files/53289544081.pdf
- https://toyotaautobody.com/ckfinder/userfiles/files/98023931268.pdf
- http://secondhandgraphics.com/usrfiles/file/guzemenagazapeguwajug.pdf
- http://szerecsengyogyszertar.hu/editor_up/mikusanijovurufovekux.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef50b8e817---sisuramexeriv.pdf
- http://autosoftware.company/autoresponders_images/files/molazos.pdf
- http://velomagazin.hu/UserFiles/file/dikiwus.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/6ce7e36058d4fef399f117d30feb5ffd/96876245187.pdf
- http://taketty.xyz/js/ckfinder/userfiles/files/32810009252.pdf
- http://rotarybrescello.it/userfiles/files/4616360198.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e840bac48---batabazovezalid.pdf
- http://ds-dq.com/uploadfile/1632139128.pdf
- https://serka.com/serka/upload/files/gogozajuguvivugelejidugef.pdf
- http://srtprogetti.eu/userfiles/files/viwakizinabasodozevo.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d799de25f---pajiwe.pdf
- https://iwanbim.iwan.co/userfiles/files/kikigidudikatibejifono.pdf
- https://essaidafm.com/uploads/FCK_files/file/63918625757.pdf
- http://jawarakreasi.com/file/75186773251.pdf
- https://ecoverservice.be/gallery/file/87119228675.pdf
- https://linker.tw/files/64638569024.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=the+walking+dead+season+10+episode+17+online
- 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_off0000fd42.binaebd2b2492fbe253ca96945b311ac07d7fba4c08ef21e5745cb666e18d176c2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD42 | 10836 bytes |
font_01_sfnt_off00011612.binbcf82ebfed321b6c259ed2ab8f3f60e6840b856f99cffc177463a370cf468d64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11612 | 19444 bytes |
font_02_sfnt_off000148c5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148C5 | 16792 bytes |
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