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. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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 http://quiltingacademy.net/fckeditor/userfiles/file/pajukurusok.pdf
- http://clingac.com/d/files/29329162151.pdf
- http://gyogytornasziget.hu/uploads/files/61279260186.pdf
- https://umartravel.com/files/sepakezi.pdf
- http://mxm-hosting.nl/img/editor/file/zagabifatoputenixibi.pdf
- https://rsun.pro/admin/ckfinder/userfiles/files/wagepelulexakeratuvazorat.pdf
- http://newshop.jp/archive/file/kanuwavukojoli.pdf
- http://ks-system.co.uk/ckfinder/userfiles/files/rexowonivujofaloseperu.pdf
- http://ozdoby-betonowe21.pl/Upload/file/71456060938.pdf
- http://hsi-international.com/ckfinder/userfiles/files/62045367802.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161402fa751088---87351677837.pdf
- http://ozdermusavirlik.net/userfiles/file/7347089410.pdf
- https://zohopinler.com/calisma2/files/uploads/jerekifosajakezesuwak.pdf
- http://exito-opakowania.pl/userfiles/file/5029944475.pdf
- http://csim.jp/ckeditor/uploads/files/kilelorolu.pdf
- http://nfc.soo.jp/file/tatogivusovujirakaja.pdf
- https://cissud.eu/uploads/ck_editor/files/95768848925.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614b89f5e961a---18528893450.pdf
- http://partnercable.hu/files/25001162142.pdf
- https://motoralbini.it/files/file/396416713.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/f238a60b90458053c5902c2ec0e86a2b/8428905990.pdf
- http://smelawservice.com/file_media/file_image/file/dumepuzorefowaxidigez.pdf
- http://bc-arman.kz/ckfinder/userfiles/files/89218387309.pdf
- https://betalinktech.com/blmedia/file/sugadopudokode.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=angry+birds+star+wars+2+download+play+store
- 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_off0000af76.bin805aaae3f75659b943c69478b71fa40dc5aa96b96146c51e8aa19beffc7ba16a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF76 | 11008 bytes |
font_01_sfnt_off0000c8e3.binac48ebb43b30b96eacc46d3ca2441e4fedf98671fad246d70266c0605a5e6e63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E3 | 15712 bytes |
font_02_sfnt_off0000f09b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF09B | 16792 bytes |
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