MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The presence of a 'download button' lure further supports this, although no specific script was extracted to detail payload execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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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://drafthe.ru/uplcv?utm_term=fb+like+apk+download
- http://ichieh.tw/uploads/files/202109041421533044.pdf
- http://familiegravesen.dk/userfiles/file/58599601913.pdf
- https://conexusinternational.com/ckfinder/userfiles/file/41049511170.pdf
- https://vinocastillo.hu/editor_up/fezunan.pdf
- https://birutelorasin.com/contents/files/walaliziwoboter.pdf
- https://bravo-hk.com/userfiles/file/49741159672.pdf
- http://klusjesindex.nl/images/uploads/41815489269.pdf
- https://keluargamimpi2.com/contents/files/67068661526.pdf
- https://www.mmgrowersg.com/ckfinder/userfiles/files/43481929972.pdf
- https://maytinhdalat.vn/images/uploads/files/doratubalosufibipojuv.pdf
- http://litho-and-co.fr/ckeditor/upload/files/fotijez.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/80f065ef643a7af076f96a12dc6de184/46533422009.pdf
- http://kantipursecurity.com/userfiles/file/9902615019.pdf
- https://inprovitbrasil.com/ckfinder/userfiles/files/82690079374.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614030a792366---fiwofaseliloxibuvarow.pdf
- http://ettorebelfioreliutaio.it/userfiles/files/83527786399.pdf
- http://tunesistudio.eu/userfiles/files/88395343788.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16143cb506bde3---rerakevonudubosi.pdf
- https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/30098047678.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142f1294115f---11284652984.pdf
- http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dipokijutefugo.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_off0000d006.bin6a7f44d8d8fd9544da9f9e27fcc8bbcddd71c1d1f685e68af7f45e23ff743ccb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD006 | 10316 bytes |
font_01_sfnt_off0000e721.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE721 | 16792 bytes |
font_02_sfnt_off0000ff33.bin6cf1559948eaf704009fb987efe0a5711c43f80da7fcf45c06b0eaa0e7c16b65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF33 | 18208 bytes |
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