MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites. These links are structured as a link farm, suggesting an attempt to distribute malicious content or redirect users to phishing sites. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
Heuristics 7
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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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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://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae67b292be---kanowoxawo.pdf
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/4bf21fd5fd904d29d259dc57956021e3/94535551213.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160721db82af93---66294846096.pdf
- http://carshopm.com/js/upload/files/36844394987.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d8c9b0234---razibapupisofe.pdf
- https://hanyauntuktesting.com/contents//files/sakagejab.pdf
- http://fongyoskert.hu/userfiles/files/911086203.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/3f13243f06c1bf5fde261a3f1eae2aa7/59365692560.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/429ab5b2212805776f423598f075c677/ragofegi.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606da0380ea4a---tomirube.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/0ef0af7f32f7259eba1d677fa01c34ca/bufexawojupogo.pdf
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/29f1b2684e0a6d57e6e155cfce68054c/98146690427.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160835150e7120---81623236944.pdf
- http://volamtuyetthe.com/userfiles/file/wupokitegalavadakurazuf.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2f9e1b3eb---fuparugib.pdf
- http://annabarons.lv/files/files/papuma.pdf
- http://bidmitt.com/img/files/file/5572251288.pdf
- http://cafesezony.ru/fck_editor_files/files/63020068417.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/dbebee0f97abe87c3f6332a8852503c4/78134003458.pdf
- https://accesoriosalmayor.com/images/userfiles/file/32286216786.pdf
- http://acecaalcoy.com/userfiles/file/nibufaxunowudumeberok.pdf
- http://chukguwang.com/files/fckeditor/file/37236180341.pdf
- https://beautyyaurient.com/editor_upload/file/zulizuzinoxikekif.pdf
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160921d3de3e01---mezamozojupasoliti.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=coin+master+mod+apk+giros+infinito+2021
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dbde.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBDE | 16792 bytes |
font_01_sfnt_off0000f3f5.bine26a738b6be338364e2d60853b8e184186f42adcc94e879a7f68b4f79baa9c80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F5 | 11212 bytes |
font_02_sfnt_off00010e16.bin2ca0aeb863c92c60a5dbe6244a8d39f3f57f8cd47588b6c12af2622cff144a54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E16 | 17388 bytes |
font_03_sfnt_off00013a9c.bin9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A9C | 16092 bytes |
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