MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_CLICKFIX' heuristic suggests the document attempts to trick users into executing commands, likely to download and run a secondary payload. The presence of numerous links to compromised WordPress sites and disposable hosting further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fe904e2c5be9d370ce8bd4a9dfd2f0bc/16253776844.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160782f1ff2ce7---sifegiluf.pdf
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/pe48f699okbneivd2c484bnm9t/26251852885.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084a608ba55c---35997414737.pdf
- http://bright-inter.com/file_media/file_image/file/99767289299.pdf
- http://resetimpianti.it/reset/public/file/16273236455.pdf
- http://metallpress.info/files/ruduzo.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6d24b22e1---weriwuxarip.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606eea4d51cdd---78591021214.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/cf94753bae41be1cde2de8373b2b4b4e/55162742811.pdf
- http://hz-karavany.cz/ckfinder/userfiles/files/bupisenomomit.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160702c7ec6ba4---zufivikazeveluwimagameb.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/826dfaf7c1ca63c63563f942a300c13e/wixufavasutarupufesixeno.pdf
- http://reflita.lt/uploads/files/besutaxi.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16079c1d13bc81---bevikunubiza.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160823df90a6f2---jekidatiri.pdf
- http://refpecsbelvaros.hu/kepek/files/zapox.pdf
- http://diysmart.net/userfiles/file/90362931868.pdf
- http://astro2sphere.com/admin/images/file/lijumerafeli.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/7953ea7de6f2f5b2bc9f8d9a01c861cc/47734566595.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3fbee4794c---folebizovolago.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16075fc71e1d2d---dulem.pdf
- http://rts-3.ru/upload/files/30910752571.pdf
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/3590eb76c312c6fa374a3b9e01068adc/ganepolisirujez.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/48ddf047f3f5e6032ad12e993d55259f/91683967326.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+stop+chrome+from+blocking+downloads+2019
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/31bc8130df01ffea1882aa0e9132f04d/difemoranazine.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_off0000eda1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA1 | 16792 bytes |
font_01_sfnt_off000105b3.bin36da2e4a72d9a8dad4f20e32b6003d35ff327e2d4a82a55a9672e4124591fa67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B3 | 18188 bytes |
font_02_sfnt_off00013513.bin25bac96ef54c4b97291de94deb817c945efbba69e79db6beaf2a3048be8b7c64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13513 | 11840 bytes |
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