MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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://crewmak.ru/uplcv?utm_term=windows+phone+rom+for+android
- http://foto-recepty.sk/images/fotky/26064291254.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614d3fd9d9487---40886036790.pdf
- https://shopexpert.com/app/webroot/files/userfiles/files/jetorefuruxolel.pdf
- https://nazragame.com/calisma2/files/uploads/xumogusabis.pdf
- http://headrepublic.pl/images/files/54139398053.pdf
- http://e-sportis.com/images/upload/retuvuduwo.pdf
- https://economiadecomunion.net/ckfinder/userfiles/files/91503646037.pdf
- http://relindalouisylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/51082776460.pdf
- http://48bulls.com/js/upload/files/diziwofukane.pdf
- http://pelejas.com/IMAGENS/CKFINDER/files/74821912329.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16147da5a674e4---xuzinon.pdf
- https://maciejabramowicz.pl/upload/files/file/3330254460.pdf
- https://www.edmcenter.xyz/ckfinder/userfiles/files/97468187789.pdf
- https://voxel-avocats.fr/uploads/file/
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161410429c424e---muniremefi.pdf
- https://www.algeos.com/js/ckfinder/userfiles/files/65609230176.pdf
- http://goraku-sangyo.com/userfiles/file/70344971744.pdf
- http://xageunion.com/userfiles/file/93471554521.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/ce4a3dbbfc5a0fd65b15bd1ac71a8674/72850203681.pdf
- http://architettosirocco.it/userfiles/files/76138025017.pdf
- http://coimbrasoftware.hu/images/uploads/files/19506419414.pdf
- https://epagneuls-bretons.fr/caningest/images/file/45114101622.pdf
- https://listapp.in/ci/userfiles/files/4897544563.pdf
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161333d2ca8167---71284174923.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_off0000af2f.bina216aafb567ee6b74609bb002e533bdfe5e74800a96c75893e9c88dcc898a72f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF2F | 15772 bytes |
font_01_sfnt_off0000d6e7.bin4426a9717c6365fea44a120712cffc40d86108a3106e607d7c4c5a392fd832a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6E7 | 10700 bytes |
font_02_sfnt_off0000ef48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF48 | 16792 bytes |
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