MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised or disposable hosting sites. The presence of numerous PDF links and the 'utm_term_redirector=True' flag suggest an attempt to obscure the final destination and potentially trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://cissud.com/uploads/ck_editor/files/losazujajegenewifis.pdf
- http://netcentricnj.com/ckfinder/userfiles/files/juvenume.pdf
- https://titishop.co/upload/files/85991993409.pdf
- https://ud-hobby.com/images/Upload/file/fibuwimokizezujito.pdf
- http://kidsjeodo.com/images/files/felofibewutezomowapixe.pdf
- https://markaoyun.com/calisma2/files/uploads/doropisiw.pdf
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/e02653a5aa54a131fe96d92cce943c6b/51642597498.pdf
- http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/83268743812.pdf
- http://qlionshousing.ca/userfiles/file/wagun.pdf
- http://aviteksural.ru/admin/ckfinder/userfiles/files/16873427448.pdf
- http://registermycompany.in/admin/userfiles/file/26632211819.pdf
- http://postelezmasivu-brno.com/ckfinder/userfiles/files/falunikutevaxopave.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/161409c8ec2ea6---11313263404.pdf
- http://gangwonbnb.com/FileData/ckfinder/files/20210916_C60EBEF821DED64A.pdf
- http://ferrocom-spb.ru/userfiles/files/21074132175.pdf
- https://homecareangels.ca/files/files/files/jonugijutafip.pdf
- http://thegioichuyendong.info/app/webroot/upload/files/86529301261.pdf
- https://warsztatgdynia.pl/app/webroot/media/files/85729898700.pdf
- https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/foxipemixepozarekigumovof.pdf
- https://hearing-outlet.com/uploads/files/202109020848165666.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16136ef0938c22---71382526791.pdf
- https://whatproperty.ng/ckfinder/userfiles/files/diseb.pdf
- http://www.bufolari.com/public/immagini/file/42250518086.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=3g+signal+booster+apk
- 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_off0000d7c2.bin4c41fd72bd6fea30ebfcffa3eed687c3e43de2c504d4e5de76d184b8447f87c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C2 | 10736 bytes |
font_01_sfnt_off0000f054.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF054 | 16792 bytes |
font_02_sfnt_off00010866.bin5ae4dcc667454c75fdc7d1bb47d2badea8acb2767a140e1c032fa9e8973de95a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10866 | 17844 bytes |
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