MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as Pdf.Phishing.Trojan. The document contains a fake CAPTCHA, a common lure to trick users into executing malicious content or interacting with the file. Numerous URLs were extracted, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or credential harvesting campaign.
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://cructi.ru/uplcv?utm_term=notes+chapter+2+physics+class+11
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b032eccbe28---pafegizarajigodusug.pdf
- https://angkoronetour.com/userfiles/file/96831786405.pdf
- http://tutaylamhet.com/storage/ckfinder/files/rugogefubevalagew.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c90142ada8f---47095362470.pdf
- http://purofirstli.net/userfiles/file/96208946974.pdf
- https://evermoral.hk/upload/file/1624772739.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608317793e31a---51225223469.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608717d41c5b6---famoxexog.pdf
- https://bdaudit.ro/userfiles/file/wamin.pdf
- https://hanahana.vn/media/ftp/file/bazukuwilid.pdf
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/dkgv1kot97f737rll7djbrpg6v/rekurifegixagina.pdf
- http://curry-box-deluxe.de/userfiles/file/vugaw.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/8f373f1d109d52d348891b0d89ad12d9/vadupinanad.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607d281ea3faf---90987335296.pdf
- http://murielbellhomes.com/userfiles/files/topumotukar.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/c19dc2a00581aa9d269b8f50e530f138/44276045858.pdf
- https://travelinnsuites.com/nbloom/fckuploads/file/jogopazis.pdf
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/f323d28d3a2a9877d7b4b6ce1e9095b0/ligebu.pdf
- http://chanakyaaerospacedefence.com/userfiles/file/rifobivarapoli.pdf
- http://aqbnb.com/uploadfile/file/76863884760.pdf
- http://taiwan-casters.com/userfiles/file/lisogomopubebasagisojorir.pdf
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/1gh2sv20matf05m7904k6fa47g/sigivibowodevat.pdf
- http://tpdw.pl/userfiles/file/15658704700.pdf
- http://lucann.com/Upload/file/pepuzirutadirudemebibak.pdf
- http://pwmtqatar.net/userfiles/file/46769662018.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_off0000e7dd.bin5ff37731113567ebfe79b81f269e9288b572ea348a82d2409e695bbbb1eb842d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7DD | 10628 bytes |
font_01_sfnt_off00010078.bin47daf27a54557ecaad99a24b8bb919710014894358fd6931b8ae2895c0e2cc55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10078 | 17440 bytes |
font_02_sfnt_off00012df3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DF3 | 16792 bytes |
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