MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many of which are embedded within what appears to be a link farm designed to direct users to potentially compromised websites or disposable hosting. The presence of 'utm_term' parameters suggests an attempt to track user engagement, common in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://synerhu.ru/uplcv?utm_term=how+to+set+live+wallpaper+on+iphone+12 PDF link annotation
- https://ausztriasi.spawellness.hu/upload/hirlevel/files/27217382496.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae46743dcd---dunusas.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/mukomenowi.pdfIn PDF document text
- http://mywayrtk.org/userfiles/file/pavemojij.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/35548655339.pdfIn PDF document text
- http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/zawat.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342c99a5633---90438754484.pdfIn PDF document text
- http://hieuchuan.com/upload/files/tizibok.pdfIn PDF document text
- http://avon-bratislava.sk/files/files/vugumaji.pdfIn PDF document text
- https://i-intelli.com/ckfinder/userfiles/files/91674701207.pdfIn PDF document text
- http://bcslaw.hu/admin/fck_upload/file/mekitexifibivetovufumaki.pdfIn PDF document text
- https://angkalaris.com/contents/files/63457798954.pdfIn PDF document text
- https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/wekafipegure.pdfIn PDF document text
- http://cmrivestimenti.com/userfiles/files/20838979947.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/28532922523.pdfIn PDF document text
- http://gidromall.ru/img/uploads/file/95737356429.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/vamalibunulufafit.pdfIn PDF document text
- https://jackinthegymtpe.com/uploads/files/202109130805594001.pdfIn PDF document text
- http://locthanhwindow.com/img_duhoc/files/96689107208.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161347c8f2f90c---puranoritewibulusexuni.pdfIn PDF document text
- http://visit-pune.com/userfiles/file/13010750846.pdfIn PDF document text
- http://fcgo.tw/uploadpic/files/janened.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE092 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8A4 | 18604 bytes |
SHA-256: 4b4c17c65ec78de583b67b6b21cc2405a4e193c21118e4bda6f3cdf36dd71670 |
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font_02_sfnt_off0001289d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1289D | 10664 bytes |
SHA-256: 3ddbcbf883a5ccd61f1ac6357966abaf77d76a6cd2191ca4e7ef2ef0c00f71d6 |
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