MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with multiple URLs pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF format itself can embed JavaScript, which is often used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=special+forces+group+2
- http://idevicesplus.nl/app/webroot/files/userfiles/files/28156589462.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613da812ec216---gexepudetipaluwikaliradid.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16133582991bb2---bebij.pdf
- http://cbcom.fr/ressource/site-image/files/ligunapub.pdf
- http://foto-recepty.sk/images/fotky/55700168098.pdf
- http://naphogacomposite.com/upload/files/robekene.pdf
- https://kawanmto.net/contents/files/47266113494.pdf
- https://nezrenweb.com/calisma2/files/uploads/xamakadatopixavakaj.pdf
- http://hoteldazegliotorino.com/userfiles/files/25408486823.pdf
- https://dursunguney.com/userfiles/files/85289702739.pdf
- https://thefertilizergranulators.com/d/files/tategodepeguputapem.pdf
- https://smshealthcareservices.com/ckfinder/userfiles/files/xunatevikimewitaguzib.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/c6a993e7e4e9193a34867fa1ba60b002/5152100597.pdf
- http://geobigoni.it/userfiles/files/76139883413.pdf
- https://cosplay-expo.it/ckfinder/userfiles/files/pewukenebufurezirewite.pdf
- http://doorsatyrau.com/ckfinder/userfiles/files/pisekewumajulo.pdf
- http://biosite.ru/images/news/file/vomipavawipilixumat.pdf
- http://auto-rad.pl/userfiles/file/98169641298.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/i2575p8noii67qnij3lsots3j1/10965553372.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161408ce516ab2---vuwobovomoru.pdf
- http://bebaldebaran.eu/userfiles/files/66448138870.pdf
- https://mimpisiluman.com/contents/files/bimemazinojijubi.pdf
- http://orderleesushi.com/uploads/files/24156739323.pdf
- http://tongchangkj.com/uploadfile/file///2021090603432826.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_off0000dbd2.bin74e65c6e2b812211cb742301ad5529290e57a6e066a18b6356ed6f87ea7a24e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBD2 | 17744 bytes |
font_01_sfnt_off00010964.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10964 | 16792 bytes |
font_02_sfnt_off0001217b.bina3f6ec94e096d23ba23c5ea2bb25929763d4ce3491ae2912632977d27d5659b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1217B | 10748 bytes |
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