MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier 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 unknown URLs and a link farm structure strongly suggests an attempt to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://partner-support.net/user_data/userfiles/files/wineluloku.pdf
- http://pilot-market.ru/new/files/file/juvunapot.pdf
- http://coiffurenais.com/userfiles/file/jozudokilofisesana.pdf
- http://srtcivilnorth.com/ckeditor_file/files/nozosejezafefurerup.pdf
- https://detskeihriska.eu/ckfinder/userfiles/files/xeselajewojukixi.pdf
- https://monyetmesum.com/contents/files/fijeludatumenitovojupi.pdf
- https://xyoaa.org/sites/default/files/files/dulukuloli.pdf
- http://odessawa.com/userfiles/file/tunatuluwuwajifawamifad.pdf
- http://kvbm.org/pds/userfiles/files/tubotunabakowutoto.pdf
- http://runbo.net/upfiles/files/16313623661520.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146635f2f336---rowozevufabiwik.pdf
- http://villaroyalenews.com/userimages/bojuve.pdf
- https://btsis.com/upload/ckfinder/files/nixexapo.pdf
- https://alkalacarservice.com/public_html/userfiles/file/51996134444.pdf
- http://interwork.sk/userfiles/file/vopilezaboxobugutokij.pdf
- https://apc-algercentre.dz/ckfinder/userfiles/files/44724652220.pdf
- http://chafewyuok.handysociality.com/upload/files/xarixezetolijosoj.pdf
- http://osstemcardiotec.com/files/fckeditor/file/11213003656135faa26b994.pdf
- http://asja-doll.ru/userfiles/file/38434403657.pdf
- http://usefchina.com/uploadfile/file///2021091403575824.pdf
- http://benthanhsgfarm.com/images/uploads/files/83588222825.pdf
- https://bisnismedsos.com/userfiles/file/90026990831.pdf
- http://eventechsite.com/files/files/11133844008.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/3ttd8oj5ro0dsp9602lb7u3a4u/55398621827.pdf
- http://gadkowski.pl/repository/filemanager/file/44626159968.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/161451bda421d4---19289046834.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=telecharger+pubg+mobile+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_off0000e38d.bin85d42accd191709a92318ce76bc4911856799207d9fc499784dcb534c3e762b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38D | 18472 bytes |
font_01_sfnt_off000113b0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113B0 | 16792 bytes |
font_02_sfnt_off00012bc7.binf80de71966ed282816ab0f0eeab643a887c5e5a82b6973dff6a7b1f4ef28ac06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC7 | 10744 bytes |
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