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 and a machine learning classifier as malicious. It functions as a link farm, with numerous embedded URLs pointing to various websites, some of which are hosted on compromised CMS platforms. The ClamAV detection indicates it is a phishing trojan, suggesting the links are intended to lead users to malicious sites for credential harvesting or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 http://effektfilm.de/files/file/70482452957.pdf
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/phqcfdkct9e3g1bna66ta2aou5/bopeganezezaper.pdf
- http://thunderstar.cn/userfiles/file/20210523184547400856687.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608642292dc18---fuzomixarizonivivivap.pdf
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/13400172488.pdf
- http://4998horo.gmmwireless.com/contents/files/vizojozifinexe.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607792bf4f646---21627333773.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160941f031b841---63499859799.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a43dc491a4a---33291511995.pdf
- https://infotechb2blite.com/bot/ckfinder/uf/files/21077899851.pdf
- https://meccanicagambirasio.it/file/sevufiji.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608371a027ad9---kivatikekawurenuvuk.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/595b7744b2a3ff3b694ed15f90a234e0/62721712554.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a07b932b743---75612793085.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/df0f746d5c241a6d378393dc81d1c78f/lokusitixomabafajepekusab.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/17b0ee8188b31004855c99cc77a67de7/29144781865.pdf
- http://furniture83.com/upload/files/zubamobesigiwomawego.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a29ddc72361---sapenas.pdf
- http://sys-svinding.dk/userfiles/file/45888648314.pdf
- https://zlato-eu.cz/upload/files/dixurupazuvabozuvowupok.pdf
- https://alajuusa.ee/media/contents/file/zojagosawaximerivapobaweb.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7005b5bf9---67044467789.pdf
- https://hurtowniaroza.pl/upload/files/39484401019.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c05030cbf5d---28485504682.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=the+quintessential+quintuplets+season+2+episode+1+english+sub
- 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_off0000d5ec.bin865628d364c7bc73ce5794b85b620963a82d8d4fbfe496506ea46adfdf1e4c62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5EC | 11092 bytes |
font_01_sfnt_off0000ef14.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF14 | 16792 bytes |
font_02_sfnt_off00010726.bin7b9d573e9929cc53bab1a21fe088655d90eb32b65f8896f28c37a96fe477cbe5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10726 | 16772 bytes |
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