MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised or disposable domains, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the structure and URL distribution suggest a malicious link farm designed to lure users to potentially harmful content.
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://dlshixiang.com.cn/ckfinder/userfiles/files/32929814076.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16132c524d07d4---2931042343.pdf
- http://thepokewave.com/uploads/files/renuv.pdf
- http://xn--80aa5alfu.kz/file/58443114546.pdf
- http://giasudaihocsupham.com/Images_upload/files/90936640153.pdf
- http://bioscipublisher.com/files/upfiles/file/2520135813.pdf
- https://pelletier-tp.fr/ckfinder/userfiles/files/xarotabimomimupajexafu.pdf
- https://megatex.ua/images/uploads/file/xigis.pdf
- http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/51019794864.pdf
- http://yourhealthyanswer.com/ckfinder/userfiles/files/pevonuwanurixige.pdf
- http://slhospital.com/upload/fckeditor/file/40722142220.pdf
- http://drsrkbedcollege.com/ckeditor/ckfinder/userfiles/files/xorewizib.pdf
- http://berallebags.com/UploadFiles/FCKeditor/20210912070449.pdf
- http://lingvastar.z-i-g-z-a-g.com/userfiles/files/10173279258.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/9f815e7012deb57a48abc5ca63b454d2/xeraranirutuzud.pdf
- https://unitytradecapital.com/ckfinder/userfiles/files/62506990200.pdf
- http://sostrevalli.it/userfiles/files/nifotujir.pdf
- http://transporteslaplata.com/imagenes_web/file/xafudemijazefavun.pdf
- http://mdtrend.hu/files/file/faxoxamipiduzizelitak.pdf
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210901080914.pdf
- http://jszl-rolls.com/filespath/files/20210907024632.pdf
- http://thewesternmist.com/userfiles/file/puvanuzaxemumivuse.pdf
- http://hytechcommunications.com/userfiles/file/mupumubegirakubevorozamid.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/08f9820d8130dcf9670ded623f677614/12027095461.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ppsspp+analog+stick
- 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_off0000ccd5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCD5 | 16792 bytes |
font_01_sfnt_off0000e4ec.bin32d580971a81eee1488911fbb6e6fb39373371da4c84920b11ceb26a89f9b594 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4EC | 10412 bytes |
font_02_sfnt_off0000fca4.bin831fb41a3ee8c9fbe3ca38c294c21e6560b326bba61639484eea789fa6c111e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA4 | 17572 bytes |
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