MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://garglob.ru/uplcv?utm_term=extraction+meaning+in+english
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f93c630b66---57509760722.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608295b171c98---gareruselumunozi.pdf
- https://ourcampuswindow.com/ckfinder/userfiles/files/64674558372.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc5af56b97---92901849820.pdf
- http://ideviceplus.be/app/webroot/files/userfiles/files/90753534992.pdf
- https://soechi.net/userfiles/file/86039317945.pdf
- http://chongthamnguoc.vn/img/files/divawidemisola.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa39d0b5ec9---kasedivaxezuxumajefuze.pdf
- http://hifitness.hu/userfiles/file/rorugo.pdf
- http://colescastle.com/clients/875019/File/28110597618.pdf
- https://emilline.dk/ckfinder/userfiles/files/fopomefeleneze.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909c24e9f09---27280727957.pdf
- http://skikk.nl/app/webroot/files/userfiles/files/14108789368.pdf
- http://sonhanint.com/uploadpic/sun/files/202108230607504467.pdf
- http://stphilomenaonline.org/userfiles/file/rotatabusurajizegir.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a41f2a7cbf---gipumetotix.pdf
- http://tokyoracing.hu/userfiles/file/sagudavujido.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b51d6d18168---93029624858.pdf
- http://yao-cheng.com/uploadfiles/20210623121615.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1610b272ed4418---tujovaxoxuneb.pdf
- http://pomocnaukowa.net/Upload/file/siraledixexa.pdf
- http://lhsclassof68.com/clients/73441/File/21996215136.pdf
- https://rt9.rspo.org/ckfinder/userfiles/files/84807699052.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_off0000d6b4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B4 | 16792 bytes |
font_01_sfnt_off0000eecb.bin2f3ac74998375f4a04949f5d51b9efdafe2709ec8853e12b6cb59b6f0a3d6013 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECB | 10760 bytes |
font_02_sfnt_off00010759.bin407f541e48bb8059701344bef1d65830617d2b5d0ae12616b91972ca874d73e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10759 | 18892 bytes |
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