MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to potentially compromised or disposable hosting. The presence of numerous links, including one hosted on a compromised CMS upload directory, strongly suggests an intent to redirect users to malicious sites for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://cuanhuadanang.vn/uploads/image/files/72517253106.pdf
- http://agrostroi-proekt.ru/ckfinder/userfiles/files/55060498835.pdf
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/50780614294.pdf
- https://beysukonaklari.com/ckfinder/userfiles/files/68017456945.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/nvc0k15abkv5o938pnglbi53oe/vuwijipufodewiwi.pdf
- https://infiniteprospects.com/FCKeditor/file/19507115916.pdf
- http://evo-models.com/uploads/userfiles/files/munefoxomamazusa.pdf
- http://dogable.de/userfiles/file/sirigo.pdf
- https://isleo.com/i_photos/file/sezirusakabodokatemavo.pdf
- https://hophamthaibinh.com/upload/files/wiwixelu.pdf
- https://maturana.cl/upload/file/36820876539.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/b889e87b185889469f7e8b7850a11ef7/33361765221.pdf
- http://aescantabria.es/upload/fckeditor/file///zurobogojivomigavinizo.pdf
- http://biemmecommerciale.eu/userfiles/files/vagemerabenef.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/jvcfi3ub9rje2biq4i2m7dc5je/26601554523.pdf
- http://avs-market.ru/admin/ckfinder/userfiles/files/38449676756.pdf
- https://sunsoftinfoway.net/ckfinder/userfiles/files/lipukosiv.pdf
- https://www.asoriofrio.org/ckfinder/userfiles/files/58768743233.pdf
- http://daehnfeldt.com/userfiles/file/38180128826.pdf
- http://allamericannursing.com/userfiles/file/10149161151.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/5636158928d3f3a5e82edd3dcb6c39de/39712882883.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=download+game+bully+original
- 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_off0000ac8d.bincc2cb548925a0748f59466f71a2b8263cd2536241b3dc1af7dcf748dcc53c3e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC8D | 10764 bytes |
font_01_sfnt_off0000c50d.bin03d3d243a8d668b3e522797cf42045ddfd371618416abad9b8f8f6ccf5d2fd5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC50D | 15020 bytes |
font_02_sfnt_off0000eaad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAAD | 16792 bytes |
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