MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous external URLs, many hosted on compromised or disposable domains, suggesting an attempt to direct users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the malicious intent of distributing links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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 http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zisirav.pdf
- http://gpszone.hu/upload/userfiles/file/zipagoj.pdf
- http://slstudio.it/userfiles/files/wixomevagejibaw.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-6-19/20210619192257809874.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/o5sniakg1nmmaj53u8rrui92as/muveporutipikowasijaris.pdf
- http://captaincook.hu/userfiles/file/basafukewexuzakazobela.pdf
- http://ecoevopublisher.com/files/upfiles/file/35183177836.pdf
- http://1960vonsteuben.com/clients/d/df/dfb5e1b83ea85bfdc5ef1da934264264/File/raruvotuwaxati.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/82b4d1c731e6ea93bf63239872ffff00/11794017985.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/18b16af16c170589e1da34e929447f07/fazexafeguzame.pdf
- http://humanitool.ru/userfiles/file/batososokoz.pdf
- http://silesiacapital.eu/data/file/33734376652.pdf
- https://www.highlandernepal.com/assets/ckfinder/userfiles/files/5744997000.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160781c0c2af9f---xigeliwafubovisoboreru.pdf
- http://www.hydro-tg.pro/upload/file/49505644763.pdf
- http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64926577537.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc11be323c6---92475971268.pdf
- http://elverum-revmatiker.no/images/file/sozegirofefopar.pdf
- https://ngonluathan.com/images/ckeditor/files/64482075658.pdf
- http://msiutilities.biz/documents/geketetevum.pdf
- http://aggengr.com/uploads/CMS/file/81510819831.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/26e57641c983a5179f4068c3260671be/panufewudinaw.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610bde4d99ea1---lusizowemu.pdf
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/72916567989.pdf
- https://diphong.com/uploads/92459564932.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a57d3998c14---wulikuxubezikesa.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=film+production+process+flow+chart+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_off0000ef70.bin7e4875b256a0c689aa1b755ee7c11e26a2eef80985563ed2776128d512964779 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF70 | 17656 bytes |
font_01_sfnt_off00011d9d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D9D | 16792 bytes |
font_02_sfnt_off000135b4.bin014753d18c2a654ebaa8a0a591546873817f76dfd2f450d04242ac3462de8cca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135B4 | 11048 bytes |
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