MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as a malicious PDF phishing trojan by ClamAV. It contains embedded JavaScript and a link farm pointing to multiple PDF files hosted on compromised CMS uploads, suggesting an attempt to distribute further malicious content or redirect users to phishing pages. The presence of a 'download button' lure reinforces the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 https://archism.ru/uplcv?utm_term=indian+movies+online+with+english+subtitles
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/372ed380bce2627c12fa477e16f1b972/xenutesajik.pdf
- http://wx-test.com/upload/ckimg/files/202109121917383969.pdf
- http://sjanzee.nl/file/13903108673.pdf
- https://kotata-zlin.cz/obr/clanky/file/karabiware.pdf
- http://okna-stv.ru/userfiles/files/59519502165.pdf
- https://zhavezbozi.cz/data/file/45713364029.pdf
- https://badoza.net/userfiles/file/447978333.pdf
- http://volkshilfe-ktn.at/images/content/files/29047066794.pdf
- https://beautydiction.com/ckfinder/userfiles/files/tuxovux.pdf
- http://ballmillfactory.com/d/files/vigonakizeda.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6b358eee9---74995555883.pdf
- https://varbackaforskola.se/ckfinder/userfiles/files/sajeliboxebudobawo.pdf
- https://fotobolfestmeny.hu/mvc/userfiles/file/97058296484.pdf
- http://zsdbiopharm.com/upload/files/netedifenekuli.pdf
- http://retailpark.bg/uploads/wysiwyg/files/14551301837.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16145429d4915d---birufewifuluwikatofurimow.pdf
- http://kco.su/userfiles/file/fogenisutaxivutab.pdf
- https://gamma-electronics-eg.com/userfiles/files/tawofakewomafi.pdf
- http://buyyoutubelikes.com/ci/userfiles/files/90800968322.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/23205611000.pdf
- http://ttccid.com/userfiles/files/zoxedofudivovad.pdf
- http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/12759531700.pdf
- http://seyrimerdin.com/userfiles/file/wulipenigufosot.pdf
- http://kolkandkolkdesign.com/site/data/ws/files/lokiwirosasaz.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_off0000e731.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE731 | 16792 bytes |
font_01_sfnt_off0000ff48.bin4f01aa4365fcb2780f58b360407e21faec69c27476a93ac395193995668700da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF48 | 10936 bytes |
font_02_sfnt_off0001183b.bin5dffee582c53189b9088ee49b3253e4218a7ba9957054ed412dbfeb19187411a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1183B | 18080 bytes |
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