MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm on disposable hosting. The presence of numerous external URLs, many pointing to PDF files, suggests a phishing or malware distribution campaign. Although no scripts were directly extracted, the PDF structure and URL patterns are consistent with techniques used to deliver second-stage payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://irlanc.ru/uplcv?utm_term=black+panther+3d+live+wallpaper
- http://aexpress.lv/index/images/up/file/80499229381.pdf
- https://peoplehelppeople.net/uploads/File/83440378972.pdf
- http://homeloanz.net/images/e/file/44840122849.pdf
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/xedemegafelefebuvo.pdf
- http://patroha.hu/file/77474540629.pdf
- http://www.tobywells.org/media/fckdir/file/biwafajasop.pdf
- http://daonshop.com/files/fckeditor/file/xofanenazezuni.pdf
- http://urbariatprasice.sk/upload/file/54993656376.pdf
- http://sartor.ru/upload/files/bomudojunege.pdf
- http://gartenmessebau.de/uploads/files/48686397680.pdf
- http://reklama-v-sochi.com/ckfinder/userfiles/files/85311865418.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/u83b9nvnvab2bj5ltg8bha6ve2/dekojogobigoxepune.pdf
- http://danchrisjewelry.com/userfiles/file/42713258920.pdf
- https://eledigitalpr.it/allegati/file/venurorotaxudol.pdf
- https://ajambary.com/userfiles/file/87485083524.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/b6c378c02c218974f587d6048b61d7f3/99140499660.pdf
- https://hearing-outlet.com/uploads/files/202109160459206714.pdf
- https://clearpatth.com/userfiles/file/8675418188.pdf
- https://hargagila.com/uploads/image/files/67368264379.pdf
- http://balbu.eu/uploads/news/file/xoxof.pdf
- http://seamacros.com/upload/file/27780138150.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401879c2d87---11058169858.pdf
- http://zechnerbau.at/images/content/files/83900275400.pdf
- https://mk-promotions.com/ckfinder/userfiles/files/fobenunuwaru.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_off0000bb58.binad4db45a08ccb1c1f412cb7aea05fb3f3e6f820bc331dea56d79559726b54066 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB58 | 10792 bytes |
font_01_sfnt_off0000d434.bin54d890faac2c6c57c351f1618527d18bdba193e5d7e74a8252867c2b88b16a8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD434 | 15836 bytes |
font_02_sfnt_off0000fcca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCA | 16792 bytes |
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