MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, likely to redirect users to malicious content. The `PDF_SEO_DISPOSABLE_LINK_FARM` and `PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM` heuristics confirm this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/c842b9e68d11bdbe182669001ec6084b/22601547934.pdf
- http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/puxatiwivikerariro.pdf
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/66172795711.pdf
- http://faurerom.com/userfiles/file/61680337531.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ca0249b531d---gumad.pdf
- http://wumag.pl/userfiles/file/suwumo.pdf
- https://olgunbey.com/upload/ckfinder/files/64264062466.pdf
- https://francoisdaulte.com/ckfinder/userfiles/files/davasolenulepobowa.pdf
- https://wickedcheesy.com/images/file/sigisifu.pdf
- http://www.giuseppe.ru/ckfinder/userfiles/files/dajefejet.pdf
- http://theofficefurniturestore.com/ckfinder/userfiles/files/68859346421.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089b0cc9fdb4---88933414644.pdf
- http://dedanskecasinoer.dk/userfiles/file/fekisezorabojedifel.pdf
- http://stlnsk.ru/uploads/file/tupiti.pdf
- http://tcsklife.com/filespath/files/20210825135759.pdf
- https://duel.pl/userfiles/file/zotaw.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/cdb16105bbabc59e280c41a8247152a8/28701324635.pdf
- http://berbun.com/user_img/file/jifowarumi.pdf
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/747d66b0b97722f0227da3bb212d0421/28543799870.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/1b56c626acf7a07a170cda1a8f2ad282/vuxogilivisetimupuxa.pdf
- http://flgr.ru/files/files/17545658330.pdf
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/34eb3a7a12d629ba666bb2848d0f1ea5/46188038227.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3b421f1b52---pasokitapura.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=criminal+law+reviewer+2019
- 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_off0000bbc1.bin01a5d00f903bacc6fe0185b79d673ee67737964b21b84531e25643b8fadb3959 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBC1 | 10528 bytes |
font_01_sfnt_off0000d3d8.bin7557e9ed8e57fca65b770a03c74407ff339146c634b556edb15eba60511ca56b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3D8 | 16092 bytes |
font_02_sfnt_off0000fd3c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD3C | 16792 bytes |
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