MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It functions as a link farm, directing users to various external websites, some of which are hosted on compromised CMS platforms. The presence of numerous URLs, many using 'utm_term' parameters, suggests an attempt to distribute phishing content or download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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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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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=fast+ram+cleaner
- http://expnavi.com/sites/all/sites/default/files/file/xadozubapupuvumolasoxovez.pdf
- http://telegid.tv/userfiles/file/satimeguxuterapo.pdf
- http://toflight.mobi/attachment/ckeditor/files/5c7bfadd855592f87481f9098cc0fbbd.pdf
- http://hyundaidongdo3s.com/images/files/84769998823.pdf
- https://expomediainc.com/upload/file/41531605845.pdf
- https://tigaintan.com/contents/files/95961560462.pdf
- https://lanhcongnghiepthinhphat.com/upload/files/27712811586.pdf
- https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/35905443060.pdf
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/memadet.pdf
- https://sambelteri.com/contents/files/rasimejupop.pdf
- http://dienlanhtruongson.com/upload/files/dutenufarivaf.pdf
- http://sgo-bage.com/public/files/files/80953013674.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134ae752c195---29160665423.pdf
- https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/82628652327.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141e6fcdc3b5---lopimoseleropuwetagapebo.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613d0f6421d88---47533366874.pdf
- http://umartravel.com/files/54247017888.pdf
- http://duplisite.com/userfiles/file/dapodivetipe.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/ce0885b90aa71a1e9cc8525e2aa97023/fuxini.pdf
- https://commonlawhouse.in/userfiles/file/powogorudupenug.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134074d4737b---16934164729.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613416bfe7047---vugubu.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_off0000cc03.bin5250fed065b5ef34553289f28dfbd2d8cd55260b2dc4882584a92763c5bcbcc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC03 | 10156 bytes |
font_01_sfnt_off0000e2bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2BC | 16792 bytes |
font_02_sfnt_off0000face.bin78f70ceac1744c670dd9d261371e1e1e57bf538498d1c2517e828a5734e50f45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFACE | 17428 bytes |
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