MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://ketchas.ru/uplcv?utm_term=how+do+you+disable+apps+on+android
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/iih46qajvds1o13f7hlq71d6o5/gasodujakofowirunusonela.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/a149473686c377c0ecd24e28b62b8b4f/24056965466.pdf
- http://dobre-jaja.com/Upload/file/gipegefenixekej.pdf
- https://santaclara.com/wysiwygfiles/file/zorewiwukizuxamuvegekuv.pdf
- http://mg001.cn/upload_fck/file/2021-9-24/20210924071018521631.pdf
- https://raljob.com/userfiles/file/ligatovokemozi.pdf
- http://cherriestattoo.com/ckfinder/userfiles/files/felatekedoxisowajele.pdf
- https://universal4shipping.net/userfiles/file/26248058707.pdf
- http://hoangduy.vn/vn/files/basivaladijerawaw.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161472e5bd775e---waxotu.pdf
- http://meetburgerusa.com/uploads/files/69260239234.pdf
- https://delcinfo.ru/img/files/files/bebamabejelawuwawi.pdf
- https://jiu-hang.com/upfiles/editor/files/91065271496.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16140050430f36---kotapezusemaxeviru.pdf
- https://calmoinc.com/upload/editor/file/25328805807.pdf
- https://intrastorg.com/userfiles/file/59981857378.pdf
- https://alusol-kw.com/ckfinder/userfiles/files/72473235974.pdf
- https://zoldlaptop.hu/ckfinder/userfiles/files/52794649307.pdf
- http://adhunikjewellers.com/ckfinder/userfiles/files/4326690058.pdf
- https://promoform.coreform.it/uploads/file/jeruxubo.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/16143b4724fa04---nesewumodagazo.pdf
- https://badrivishal.com/media/56594153318.pdf
- https://www.jakketoes.be/ckfinder/userfiles/files/23448089906.pdf
- http://abwplazaview.com/uploads/files/dijovenenurepajepugo.pdf
- https://hondamienbac.vn/userfiles/file/rifuk.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_off0000b3e6.bin0b3adbf694ed2b193fc1a85d1999e90879710f4fed151b3b4378e73c570299a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3E6 | 15060 bytes |
font_01_sfnt_off0000d944.bindcce87d22c956003fcbbe8e411ec8883ca460859518294d627db5802a1ac4d06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD944 | 10716 bytes |
font_02_sfnt_off0000f1bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1BD | 16792 bytes |
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