MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded links, many of which point to disposable hosting or compromised CMS upload directories, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://huntic.ru/uplcv?utm_term=why+my+sd+card+unexpectedly+removed PDF link annotation
- http://vertex-decor.com/userfiles/file/xugetidaxogisizolata.pdfIn PDF document text
- http://www.coverseg.com/uploads/ckfinder/files/ruzapuxepo.pdfIn PDF document text
- https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/1925362503.pdfIn PDF document text
- http://fonnepal.org/userfiles/file/64543661775.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/b83da7088766b3e60ec98a7d580fa109/fuzopenimugumijajoxijaro.pdfIn PDF document text
- http://euskararenginkana.eus/files/galeria/files/zegedonupobatibavanava.pdfIn PDF document text
- http://f-kcc.jp/user_data/userfiles/files/40411683284.pdfIn PDF document text
- https://www.gitialiganjlko.org/ckfinder/userfiles/files/48027081983.pdfIn PDF document text
- https://acmfashion.vn/uploads/files/91127074461.pdfIn PDF document text
- http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/35654984234.pdfIn PDF document text
- http://delfosventures.eu/userfiles/files/14255602374.pdfIn PDF document text
- http://kiko168.com/UploadFile/file/20210921065216455.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/rirexagisolowuravovix.pdfIn PDF document text
- http://travel-door.com/userfiles/file/68240425961.pdfIn PDF document text
- http://orlickachata.cz/files/files/fatowufizir.pdfIn PDF document text
- https://kaptenhoki.net/contents/files/vadesarozutogipudozunog.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/b2bdv9divvue13mq3gqfmi9ot5/45991891868.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/gk04o28pakg75orpg43bu899u8/65510888855.pdfIn PDF document text
- https://safrano.pl/userfiles/file/mobanidew.pdfIn PDF document text
- https://sinarwaja.com/account/files/77017911359.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/78u33t6cgunfnmi8u0v0gha446/25631588417.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/88515744636.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b196.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB196 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AD | 11064 bytes |
SHA-256: ce78576ac70b60e0282f90689a9c3cc406b12e1407b1f4755bce39820f495063 |
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font_02_sfnt_off0000e357.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE357 | 16852 bytes |
SHA-256: 482c3a882e8b897ae4fbf27d41ab31e3530f392feeed76935a00a47200224b18 |
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