MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of a fake CAPTCHA prompt indicates a social engineering attempt to trick the user into performing an action, likely to download a malicious payload. The numerous extracted URLs, many hosted on compromised WordPress sites, suggest a link farm designed to distribute the malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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://oniceh.ru/uplcv?utm_term=can+you+view+someone%27s+snap+without+them+knowing
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1606caa9703fa4---78544585973.pdf
- http://davidlbrooks.com/clients/868292/File/99927697790.pdf
- http://andrelandberg.com/userfiles/file/54090211925.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/98254a9a681f091a65172d994098553e/83887538090.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7f3224de7---vikokafejotujunanudi.pdf
- http://ajtoablakcentrum.com/_user/file/zazevidejunuwen.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c20d7ada4f7---78843789102.pdf
- http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca242ec53e---3694693177.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16099d3d97802c---gutanuzonajodezuk.pdf
- http://araonline.hu/uploads/file/rowelesafilu.pdf
- http://bvsaigonbinhduong.com/uploads/files/58521956767.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d58d360d2e---86267788093.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606fce32a17b3---doxalijeg.pdf
- https://adepotcustom.com/UploadFiles/file/20210530221043196.pdf
- http://tinnaduraflex.com/uploads/files/33553034627.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cacbae42a6---26965921406.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/zuzabozukezubixovew.pdf
- https://nestaerospace.com/uploads/file/76649596849.pdf
- http://hnc2.com/userfiles/file/29956668297.pdf
- http://atut-biuro.com/uploaded/file/bexasubadukesunabage.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab103cb9c53---dodok.pdf
- https://vivekanandbawwa.com/userfiles/file/5448622129.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/spe3800qjpomptrstlrdejikq4/liraji.pdf
- https://actor-conseil.com/files/file/72593026655.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_off0000ea5f.bin378e13bf47da08b38dfc176c6c8ebd5d077c9e96b35afbb50de28590feaa0597 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA5F | 11076 bytes |
font_01_sfnt_off00010434.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10434 | 16792 bytes |
font_02_sfnt_off00011c46.bin01856e0b49adb14cdc09c14c19455f2148b0decfd4798f909f639ba33803d52d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C46 | 16812 bytes |
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