MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to disposable hosting. Heuristics indicate a link farm designed to obscure the true destination, and ClamAV detection confirms malicious intent, specifically classifying it as a phishing trojan. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://f2h63c2.ip4secure.net/upload/files/mafawavijisakuvixiwo.pdf
- http://perevodvnegiloifond.ru/pict/file/28545447700.pdf
- http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/25672374629.pdf
- http://1night2day.com/ckupload/files/rebugonibigaxa.pdf
- http://ipayon.com/root/FCKeditor/file/73801730104.pdf
- https://www.indoorclub-informa.com/boletines/img/file/71209162509.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614095529eb0c---vipixi.pdf
- http://dispensapertutti.com/userfiles/files/13455687294.pdf
- http://szwygs.com/upload/depimajow.pdf
- http://atanasijornet.net/uploads/ckfinder/files/92869969324.pdf
- http://harckocsik.hu/userfiles/file/getimapedemis.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16143010242133---veparapexudepajizunasowu.pdf
- http://circolonauticofavignana.it/userfiles/files/betadotoxosakabubemar.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16143533ef2dd3---pelojuwufanugafufovotin.pdf
- http://air-ned.com/uploads/files/55960802310.pdf
- http://kes.org/upload/editor/files/92461261253.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/33fbdceb7d0f22cda5c377f79b04ae7b/nitewezumar.pdf
- https://gifarlcm.com/upfiles/editor/files/navav.pdf
- http://botaierpharm.com/upload/files/zapas.pdf
- http://sushigonewildtogo.com/uploads/files/95908788982.pdf
- http://dolphinkorea.com/files/files/lifunisipoliporovokesuduk.pdf
- https://divinenine.net/userfiles/file/zomutafojapufiwowi.pdf
- https://neurondevelopment.org/userfiles/file/fexivovu.pdf
- http://king-pro.com/userfiles/files/58815031923.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=knitting+sites+other+than+ravelry
- 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_off0000bde8.bin746b7c87e0d415de028177300d2831f8bedac3c391363d02723b5af14ec43829 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDE8 | 15552 bytes |
font_01_sfnt_off0000e628.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE628 | 16792 bytes |
font_02_sfnt_off0000fe3f.binfa24ae5b2d56356bb5eb912e15775d99c6a4fe4cabd519ea938bd6cf49fe597d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE3F | 10560 bytes |
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