MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to redirect users to malicious sites or download further payloads. Several heuristics indicate the PDF is part of a link farm hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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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://mamotato.ro/userfiles/file/88881628760.pdf
- http://tcihk.com/userfiles/dadovegevugimezob.pdf
- http://alessandrobelleseveterinario.eu/userfiles/files/4219327615.pdf
- http://teormech.ru/teormech/usrimg/file/26356391840.pdf
- http://nagakuratrading.com/js/upload/files/47815858.pdf
- https://markiza-trade.ru/admin/ckfinder/userfiles/files/81212904423.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/a74798215fd0ee3a27a79864c73c0882/norodufo.pdf
- https://igruppe.no/ckfinder/userfiles/files/52593304917.pdf
- http://crabandclaw.com/uploads/files/560911594.pdf
- https://keyseries.us/userfiles/file/52481189917.pdf
- http://weighlessthisyear.com/ckfinder/userfiles/files/53531110989.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e976eca6f0---79465385382.pdf
- https://luminex.pl/upload/file/22635685559.pdf
- https://nusamulticentralestari.com/Uploads/userfiles/files/lukiwosuredatujugapaje.pdf
- http://asupuro.com/upload/save_image/files/45873966490.pdf
- http://watthaistuttgart.de/userfiles/file/mekam.pdf
- http://underbutter.cz/download/foto/21608092563.pdf
- http://banghetretunhien.com/media/ftp/file/3058949240.pdf
- http://www.golfusa.be/userfiles/files/zebunafavujudewet.pdf
- http://thoitranglani.com/upload/files/fisun.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133e8e42fe14---xofolusamawazip.pdf
- https://equator-maritime.com/userfiles/file/94407767682.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=power+bi+generate+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_off0000d809.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD809 | 16792 bytes |
font_01_sfnt_off0000f01b.bin500c3f4272a2c1ee41dafcda1f7f843a1aa8ac359ceffb34771eda29c742a6fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF01B | 17220 bytes |
font_02_sfnt_off00011ce9.bin929e585c07e585fdfe5799dfdfbb653b9336fa504d07abb3cccced7f68b05ef9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE9 | 10688 bytes |
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