MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm directing to multiple compromised WordPress sites, which in turn host other PDFs. This pattern is indicative of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0c8a0d8ef5---lubobaxetigakod.pdf
- http://perfekttorun.pl/pliki/zifubeda.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cd43d669b---72476035673.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160a9beef9223d---galurifilajobe.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/a06ef366962abab78290e50b7f96fafe/loxupijiror.pdf
- https://eitmedu.in/ckfinder/userfiles/files/11608437411.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fb0b6e82b---puzirudago.pdf
- https://najlepsze-w-polsce.pl/uploads/wevasagusalex.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789f008cd45---buberuramifuzikavogeze.pdf
- https://cvsc.co/userfiles/file/wexerejimana.pdf
- http://berbun.com/user_img/file/20365609280.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d03a7656320---virabijebowenemobo.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/tmhucjh6omdgr4ltvjduhbkgvp/vofugamalafupojoku.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/16089bd1a3970c---96020805428.pdf
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/defuresajibapanuzokij.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ff7ba7d79---3932852111.pdf
- http://atthaya.com/file_media/file_image/file/mumagevu.pdf
- http://www.look4job.gr/images/_user_na/file/27805903269.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f6c7e8afd97780e245a4e8b3980a7b2f/53440530877.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c74676d68d0---favunetiragenusuz.pdf
- http://sevimticaret.net/userfiles/file/3011397949.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=rewrite+the+sentence+using+correct+punctuation
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e087.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE087 | 16792 bytes |
font_01_sfnt_off0000f898.bin5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF898 | 16344 bytes |
font_02_sfnt_off00010e8d.bin385da37b978fe134de077f1b0a0877b67242b02ae19e2027a5e7d88b11ab7a92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E8D | 18484 bytes |
font_03_sfnt_off00013de5.bina41a9dcc68ff2312b752eb95c66f8ed423570b6ae68bf52b95c18e5f96f3beda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DE5 | 10836 bytes |
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