MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content. The PDF structure and embedded links suggest it's designed to lure users into clicking through to potentially harmful destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087113bceb87---wisanirudewezabusepos.pdf
- http://anhopphat.com/uploads/files/gejededinoruruwotivuja.pdf
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/f29e7e80859961e3fb2dc79bb0bf27e1/neluxonikapidijomowava.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aee51ab3711---79453921321.pdf
- http://s-moonlight.com/CKEdit/upload/files/mixudobebaxa.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609768fcbab94---33640664436.pdf
- https://ajitcoatings.com/uploads/luzanisilinenofusoneruz.pdf
- http://www.startservis.sk/novy/ckfinder/userfiles/files/31474816090.pdf
- http://huimao.com/upload/11765041454.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b3a164ef0---72291915729.pdf
- https://butterfly-propertymanagement.com/userfiles/file/46261842217.pdf
- http://verdantnorwich.com/clients/3/30/306756bb587dffcd11ca74610d845a16/File/57477711838.pdf
- https://egf.tw/test2/images/file/19043833340.pdf
- http://jatyn.cn/upfiles/202107/file/1627020447.pdf
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160e5ad1b40b76---86173428524.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609e632872011---dekavuwugorobasi.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/3af7ac08f2e4e513c056047097205c55/49197213087.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160704f396af25---kufonesadamagurupe.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/adcc818f9e40ba1c4148c16d716cf726/tokonuteza.pdf
- http://arkystudio.eu/userfiles/files/dozuxoletafokufative.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0df467493---taluwi.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb52f1f154---tamusutozokinemilipuzarib.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/tg25bvecvg9rvvtp4328h7lbee/nezajam.pdf
- http://gialtour.it/themes/userfiles//files/29468104443.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed982426476---fuzuf.pdf
- http://absolutelyneon.com/userfiles/file/15533351590.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/9b8a6001006e5a6c3d65ffed14573051/seduninigijuvidamekuxow.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=voiced+and+voiceless+sounds+list
- 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_off0000ef8d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8D | 16792 bytes |
font_01_sfnt_off0001079f.bin8f66997ad30dd572127bb15dc3170777cf342e15d443e1327c41c7e968b3661d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079F | 16984 bytes |
font_02_sfnt_off000133df.bin59c5ea8a9d6ff7451ad1decb1d8ad4b7c89747633fb6514cabfbbea778226cc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133DF | 10396 bytes |
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