MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to various websites, some of which appear to be compromised CMS uploads. The document body, though heavily obfuscated, contains references to 'Gta 4 game download apk', suggesting a lure for users seeking game downloads. The embedded JavaScript likely facilitates the redirection or download of malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://archism.ru/uplcv?utm_term=gta+4+game+download+apk PDF link annotation
- http://brandnewgoods.net/userfiles/file/kojojosaverusutowa.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/61e5ee908b66918dade8ae5b84a794b5/dutazapijuni.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e08594c466---65925885032.pdfIn PDF document text
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105030222421505.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dccf3ce64---fesesoreduj.pdfIn PDF document text
- https://studiopros.com/userfiles/file/In PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a407b12835---forugitigo.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/s1tf2jjsm69vo3afvgbrtvaeb7/28601118816.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/1202870848.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/16c35b99c50b06e93564f8abedb48718/nugudijekanixofapiro.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16070c7555b3a3---93128342810.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/5d0856a519b786969c731b1b66243f03/gusurakokexalepav.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a85969bf5e5---7415596481.pdfIn PDF document text
- http://engroupe.ca/aym_image/files/34609478126.pdfIn PDF document text
- http://chiengthai.com/file_media/file_image/file/50373311941.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC16 | 5280 bytes |
SHA-256: 5d0cb80b22a9cfa9253795b902578fd92a5a4bf2ed118ee6688ab236dc489bd8 |
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font_01_sfnt_off0000fe20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE20 | 10892 bytes |
SHA-256: d5cfb460157a755c2450affc263c6089e62ff09710588ccf1507668bd26df1ec |
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