MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised CMS upload directories and disposable hosting sites, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://ersatzmonitor.de/userfiles/file/nusetozudut.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/raf90i6auc9mb83b5stboo1shk/73620277178.pdf
- http://vizugy.hu/uploads/files/20793229190.pdf
- http://flagrant-desir.com/userfiles/file/33644366355.pdf
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/25e917d2c815c3f0028d5e91e48a7b15/fitarenuni.pdf
- https://adikketiga.com/contents//files/29035316206.pdf
- http://wallsfamilyreunion.com/clients/876683/File/revakepowowaja.pdf
- http://au-coeur-du-temps.com/userfiles/file/legokivikaxamonatobemigox.pdf
- http://www.toptehnik.si/images/finadufitediboxe.pdf
- https://b2cexpressdemo.com/userfiles/file/futiregasupag.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083471930e9e---lipetijizunabu.pdf
- http://clarasonic.com/upload/file/fobonesinabuj.pdf
- https://arerp.kr/data/file///dojigudotonixawoguduzosoj.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc37292a00---29178161125.pdf
- http://webinaris.net/ckfinder/userfiles/publics/files/32874246052.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090b80371609---27112708817.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/08e7aea5078db96beb4165ad3a626186/sasotugobewewiz.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/f95c426009613d88957d2c09a1805a8c/97324164689.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160992b9b10d00---gozemomagowaladowogefurod.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=mixing+glue+and+sawdust
- 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_off0000ebc3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC3 | 16792 bytes |
font_01_sfnt_off000103da.bincfacdd1ff888192557ba8d75fdc7f959610bb022323c67db960665d3ef1f4802 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103DA | 10484 bytes |
font_02_sfnt_off00011baa.bin3e25034912a933d628b7a2946e320f180f920bbdac7ac020e82898ad98e59018 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BAA | 17504 bytes |
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