MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to phishing sites or download further malware. The presence of a 'download button' lure further supports a deceptive user interaction.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=snell+clinical+anatomy+latest+edition+pdf
- http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/a4c169bdf144f6463962f99819447d7c/82844477867.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161307c1facd78---nudobo.pdf
- http://ky-auto.com/uploadfile/files/53522382297.pdf
- https://spyboarcams.com/files/57083896623.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/9a279378e113080fc682a987c7fc3976/xileb.pdf
- http://cioccolatogallucci.it/userfiles/file/56483684142.pdf
- https://soudurelausiere.ca/upload/editor/file/83199821586.pdf
- http://szakkepzosiklos.hu/upload/file/suwesevurar.pdf
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/83296680457.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131ab2925a43---depenivizasafuramaw.pdf
- http://ngocphuocjsc.com/public/default/ckeditor/files/xovemikonevofozu.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eecb43d933---tijenimalagugegedobola.pdf
- http://bluekeydigital.com/images/pic/file/95521803364.pdf
- http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/32287119116.pdf
- https://harom.ro/files/file/92210516414.pdf
- http://veewood.com/file_media/file_image/file/72812872654.pdf
- http://35ju.21tg.cn/uploadfile/ckeditor/files/vugevi.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/0e601i6qe655mbg4jl63kko210/33026522743.pdf
- http://lecostationery.com/files/file/7939607732.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7064d2d12367ff0b1dc832276cd2b73d/20050074405.pdf
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/96320843439.pdf
- http://dbexpertise.fr/catalogue_dynamique/file/povuwasogavo.pdf
- http://chemonova.com/FCKeditor/file/rupodigav.pdf
- http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/vejol.pdf
- https://openkomm.yussfone-crm.com/userfiles/file/46985816467.pdf
- https://beldapin.com/calisma2/files/uploads/47854686518.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_off0000db51.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB51 | 16792 bytes |
font_01_sfnt_off0000f368.bin143cc468d46f074fbf7e0c9593b64292b0cb83ac8fd071632a14c12a4407afa4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF368 | 10868 bytes |
font_02_sfnt_off00010c84.bind9e6331ba66a9e1a5080755ef28bce7a7f7228ccbffccd18745f325a8af247a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C84 | 18356 bytes |
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