MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://soroptimist.be/oldsite/intranet/ckeditor/ckfinder/userfiles/images/files/bigufisiwuvasogekegewisod.pdf In PDF document text
- http://lesmashclub.com/imgUpload/files/sarinonoruweririlago.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/gevadojanamepuwofivaxube.pdfIn PDF document text
- http://olympicburger1988.com/uploads/files/15426505698.pdfIn PDF document text
- http://networkinglikepro.com/ckfinder/userfiles/files/kalevikopiguzizuwew.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac79668731---25938779672.pdfIn PDF document text
- http://tradeweb.es/userfiles/file/mivafusitaterutefo.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e925d8760c---wibadapumekuxojoralubow.pdfIn PDF document text
- http://sententtech.com/file_media/file_image/file/11570160881.pdfIn PDF document text
- http://saltokisport.com/uploads/files/35718538483.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/34687888084.pdfIn PDF document text
- http://yomamasushitogo.com/uploads/files/42639615262.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8c445762b---32928311794.pdfIn PDF document text
- http://mlsy.cz/images/file/files/lezos.pdfIn PDF document text
- http://doingthing.com/downloads/blog/geust/files/gufofakax.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109100953295518.pdfIn PDF document text
- https://bloomlight.pl/_bloom/file/34228350893.pdfIn PDF document text
- http://clairvoyantinfotech.com/demo/images/90151063759.pdfIn PDF document text
- http://onsijsselstein.nl/userfiles/files/rubotodorepi.pdfIn PDF document text
- http://copingconversations.com/userfiles/file/nanosizixuzem.pdfIn PDF document text
- http://kkagro.com/media/images/upload/file/pepikogobu.pdfIn PDF document text
- http://uceng.net/_UploadFile/Images/file/bejadukomukaloxotik.pdfIn PDF document text
- https://agencement-menuiserie-var.fr/stockages/files/95863582334.pdfIn PDF document text
- http://landpas.pl/upload/file/jokibolutimobopi.pdfIn PDF document text
- http://signauction.net/userfiles/file/61748773979.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=five+nights+at+freddy%27s+4+online+gamePDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d071.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD071 | 11068 bytes |
SHA-256: e176ef8d55744e8329c99ac399f038cbc504b0d80c86447b15149ed40aa249d1 |
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font_01_sfnt_off0000e9e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E9 | 18948 bytes |
SHA-256: e91f79c614df0f77a1d1089edd86bc9e527cc1928a1bdb5a68ef32a7b5aaf2b0 |
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font_02_sfnt_off00011bc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BC7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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