MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many pointing to domains associated with compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://gramercygrand.ru/files/file/91753733342.pdf
- http://opuspoint.com/ckfinder/userfiles/files/jakogoxofufaz.pdf
- http://codemessaging.net/ckfinder/userfiles/files/xetonolemuribusinef.pdf
- https://garraldaarquitectura.com/garralda_userfiles/files/wodakimogoxotarigawidi.pdf
- http://christopherspubandgrille.com/userfiles/files/xawuxizavaze.pdf
- https://doitoutdoorz.com/file/JPgXEOhCaOu9z3zj.pdf
- http://jysfh.com/upload_fck/file/2021-9-10/20210910211251483531.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/ovi6uau1aor57v7jg6vggs78te/toragus.pdf
- http://embeddedhr.com/ckfinder/userfiles/files/nufiveburatabexumixefoz.pdf
- http://www.elmundodelapiscina.com/ckfinder/userfiles/files/68430256694.pdf
- http://quesnelbusinessnetwork.ca/userfiles/file/78556963683.pdf
- http://fszhenjia.com/upfolder/e/files/20210903023508.pdf
- http://mondoacquapiscine.com/userfiles/files/34319747012.pdf
- https://chiataiec.com/userfiles/Proj_Name/files/vezepuwurumijagubatig.pdf
- http://www.tsahimmongol.com/uploads/images/files/xikiwogakoxuwevugowob.pdf
- http://autosoftware.company/autoresponders_images/files/62639498405.pdf
- https://cardion.dk/gfx/fckimages/file/wadofifafuvixejagu.pdf
- https://www.sacict.or.th/ckfinder/userfiles/files/50259833119.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1232c9bc2---83112066762.pdf
- http://homesunshinepharma.com/upload/files/zomiwezafibudidiw.pdf
- https://alzubidi.com/userfiles/files/jejixerajinab.pdf
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fccfe37c3e---lojot.pdf
- http://sanga.asia/userData/board/file/jewaxusaxujukefulibumafop.pdf
- http://daimarconstrucciones.com/images/admin/file/39866873306.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+transfer+pictures+and+contacts+to+new+phone
- 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_off0000d176.bin03b96ed03253affa6b05936d03dcd96353422cef46105fae61fa59344faa01a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD176 | 10848 bytes |
font_01_sfnt_off0000ea78.bine27f4f087a55d19b5cd4e9c02b3e37a9e6b3cce75b64bc264d4ce76d83c8b7c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA78 | 15740 bytes |
font_02_sfnt_off000112fa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112FA | 16792 bytes |
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