MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classifier flagging further supports malicious intent. The document body is heavily obfuscated and unreadable, but the overall structure and URL analysis indicate a phishing or scam attempt, likely using a lure related to downloading software.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://queure.ru/uplcv?utm_term=download+construction+simulator+2014
- http://dongphat.net/upload/files/tudosi.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16143bf34acf60---57821219842.pdf
- http://ebbers-schilderwerken.nl/uploads/files/10693067234.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/2cc0ec4d0df920d268632bb856bad8d7/65014550545.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/ss0kpd71kaa5shkuuosl2f2ra5/zekugebumugafugag.pdf
- https://perfecthospitals.com/FCKeditor/file/78542218743.pdf
- http://locnuocvietmy.com/Images_upload/files/xifapo.pdf
- http://3suntech.com/UploadFile/file/20210917120713109.pdf
- http://nikolalepojevic5.com/multimedia/file/29914796169.pdf
- http://onlinevay.com/upload/files/5261691517.pdf
- https://drisraadentalcenter.com/userfiles/file/85743014365.pdf
- http://forglory.cz/ckfinder/userfiles/files/41061661539.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/198d6d193bcbf754220ffe40a15f025c/34817540715.pdf
- http://boardmark.com/files/file/vukixulubeva.pdf
- https://www.ijdsir.com/ckfinder/userfiles/files/boketadugur.pdf
- http://kowel.com/ckfinder/userfiles/files/1631704504.pdf
- https://russiancosta.ru/ckfinder/userfiles/files/dokodupefunisafof.pdf
- http://efuegypt.org/userfiles/file/69862884368.pdf
- http://88cpap.com/userfiles/files/84069320663.pdf
- http://orenprom.com/img/account/file/53869982648.pdf
- http://snuhonors.com/userfiles/file/kijorowujivinod.pdf
- https://resttour.com/images/userfiles/files/tesavesimobekazof.pdf
- http://termosystem.pl/userfiles/file/54165157854.pdf
- http://mhzsolutionz.com/userfiles/file/bawuj.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16139468784123---rexotewikedewuj.pdf
- http://www.companyforte.com/imagenes/editor/file/felekifurapesebubini.pdf
- 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_off0000db64.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB64 | 16792 bytes |
font_01_sfnt_off0000f376.bin919229600b40a4b5a4390321d81b4793338115078a24675c7c23a12595d93dbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF376 | 18080 bytes |
font_02_sfnt_off000121f3.binad1b9433227978326bde717f8e28361b20cc6979c62f4ffb2e4e08124040e710 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121F3 | 10960 bytes |
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