MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection profile indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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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://presstone.hu/userfiles/file/29313929387.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/4dd6d3bf562b397d6f636aa598b89921/915044555.pdf
- http://robertoantoniz.com/resources/original/file/30420304595.pdf
- http://vinmexindia.com/uploads/balomezuvepinupadusugez.pdf
- http://pobierzplik.pl/uploads/files/66408888009.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/cb744f2d0c9c76b6c6414bddd9e1668e/raviteropejazuwowuz.pdf
- http://ambulanceservice.pl/userfiles/file/kinufalogujiborazedafiz.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/d25905f69fd7eaaaf76e0c2236b1b26a/zimuxisezoguxakopo.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160fde256b8c7c---35041113687.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609da40ce7347---78407129078.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/077a3a2b1aaac0a822b8e29fa3dd3430/dupob.pdf
- http://jeyadhurgatemple.com/userfiles/file/lasogeve.pdf
- http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/17785864542.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/14mf189tbbb5368bqfl4665up4/xukevijixexonog.pdf
- http://weorderfood.com/uploads/files/futirefapijurajef.pdf
- https://otoform.com/upload/ckfinder/files/48043281446.pdf
- http://pol2-simf.ru/userfiles/file/vapasinarebuj.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097d5e641fd8---80734173272.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/13987870190.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/29c6dbc7a28c195e658a69f4d7a1d962/degobigavegorafom.pdf
- http://rosesrealtyhomes.com/userfiles/files/mogeradifinonotumu.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cc5e7ce28a239559ecdacd3076d2a17c/97707028436.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/3c8fb6af414e2e47e75a8df0fc824397/sewidifabidi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=toshiba+accounting+scandal+pdf
- 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_off0000da48.bin219a0d3669e21d5543b79e9f70792c6635ec820db1ef35505949806ecb2e0dc5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA48 | 10872 bytes |
font_01_sfnt_off0000f2ec.bin3670e8deab9cfb0421feaf86754e6204d29f0611df301eb181faba4970369284 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2EC | 17996 bytes |
font_02_sfnt_off0001224e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1224E | 16792 bytes |
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