MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate malicious intent, classifying this PDF as a phishing trojan. The presence of numerous external URIs, many hosted on compromised CMS upload directories, suggests a phishing or malware distribution campaign. The document body, though heavily obfuscated, likely contains links intended to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://crysiq.ru/uplcv?utm_term=right+inbox+for+gmail+android
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/0ri47jq7h9kjs350drvau3ec42/kawumuvilinawafipore.pdf
- https://eseninternational.com/uploads/files/furalasujefuborupinotorox.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613de21c356c4---61230203675.pdf
- http://sarkar.ie/userfiles/file/wavabonolexi.pdf
- https://securitydm.eu/slicice/file/zizeli.pdf
- http://upoart.com/ckfinder/userfiles/files/revasowanofuwakivujo.pdf
- http://doudou.tw/userfiles/files/rulizenagimojixip.pdf
- http://kleinschaden-expert.de/userfiles/file/56587418356.pdf
- https://e-midas.ro/files/file/vaxipuxeruxozuravufudip.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161387c8c02217---rogerarumivesemudonela.pdf
- http://abwingstop.com/uploads/files/53274794939.pdf
- https://augsburger-dartliga.de/uploads/file/52098687569.pdf
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/soranurilexezesuk.pdf
- http://xn--4k0b43gkwo4gn.com/upload/editor/file/joneselamiku.pdf
- https://www.serwkom.pl/plugins/ckfinder/userfiles/files/loxuletudozumafudemo.pdf
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/fa4b516250007945637474ea10d3891a/98625090068.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16144081d9cd2a---74901902213.pdf
- http://khonggianmang.com/upload/files/xowivakemazexatifileva.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613be9ca9a0d5---nagujefefubewuvilexujil.pdf
- http://myucmas.com/userfiles/file/79512090533.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/3beadfab00c6088b14f026921d4b82f7/gateferosepet.pdf
- http://saopauloairporttransfers.com/ckfinder/userfiles/files/36356969310.pdf
- http://tahi.hu/ckfinder/userfiles/files/96021940408.pdf
- https://homestayhoian.thamtuddt.com/uploads/image/files/sodulabopakatolimowamopi.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_off0000bced.bin3bf9fa6f199484f69e57b9c7847b6c5c24d2fe61f1316205221d99286b09a6ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCED | 10788 bytes |
font_01_sfnt_off0000d54e.binfe4ac3174786e8c0481aa6b980b9f029af699048d3fc4e664af8d1702a6c9013 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD54E | 17772 bytes |
font_02_sfnt_off0001033c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1033C | 16792 bytes |
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