MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous external URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF_URI and EMBEDDED_URL heuristics indicates the document actively attempts to connect to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.8521
Heuristics 5
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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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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://oniceh.ru/uplcv?utm_term=project+cars+trophies
- https://die-elke.de/cms/elke_page_files/file/gesozolupigekumizoz.pdf
- http://www.ferm-matic.fr/upload/file/lemedajebate.pdf
- http://henanshuangxin.com/d/files/82897141413.pdf
- https://everestart.com/images/stories/file/vizoxemode.pdf
- https://psfund.org/public/uploads/files/cms_files/zawomi.pdf
- https://sibois.eu/userfiles/file/mumipilopuvuwefem.pdf
- http://zonazero.es/userfiles/file/dutugesidoxuponukasujuv.pdf
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/3519728276.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71dc97548a---tofenonele.pdf
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/o0ppbvfjcfrvhfkefrmaj12rvf/53265023740.pdf
- http://modern-pro.ru/files/file/20971451754.pdf
- https://jairdefreitas.com/ckfinder/userfiles/files/13389479176.pdf
- http://pincailight.com/zk/UploadFile/file/2021071717452073499.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/d00ba29f8dce8e4207d3ef88dc7f6202/54821407247.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16080cd94a11f3---donomopez.pdf
- https://gachbinhduong.com/upload/file/buzadizixejodubovix.pdf
- https://lee-trading.tw/archive/upload/files/81026672828.pdf
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/10918c7af5360fba6af1df6d4cd2f441/zalerapomesefekalevelavog.pdf
- http://berallebags.com/UploadFiles/FCKeditor/20210623114902.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dca9f2945c---lisubozanitexadif.pdf
- http://heureka-cz.eu/files/nevezowonebup.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/784771cfac78175cddf9e60dd34b28ef/79974569793.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d54c09cbe5---rarabitigu.pdf
- http://txextremecarts.com/userfiles/file/tizejiwuwikif.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/fnt7n4pgd1c8dhdcvq95grhg6b/xozadomigodumoragire.pdf
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da32.bin14efae091f742e533c596759795a37b0e96d9c496eadaf2413b6c64779f4d4b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA32 | 16944 bytes |
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