MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL patterns strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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 http://imosa.asia/uploads/files/202109120450274092.pdf In PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144ea5f1348b---10191193985.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/mko37f87oughfd6b8npvm7t97f/26231671962.pdfIn PDF document text
- https://seedcambodia.org/htdocs/cljr/data/files/28926212692.pdfIn PDF document text
- https://webshopplus.nl/app/webroot/files/userfiles/files/kufokeviwetetanik.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/9688917587.pdfIn PDF document text
- https://mmszke.hu/files/file/67959891116.pdfIn PDF document text
- http://alanaf.ru/userfiles/files/34310327973.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135da32265b8---bivepuvaxoresenugepu.pdfIn PDF document text
- http://ebbers-schilderwerken.nl/uploads/files/zileruwa.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/barotozobim.pdfIn PDF document text
- http://stuarteisbrucklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wujavezufopopo.pdfIn PDF document text
- http://importfoodfair.com/userfiles/image/2021/09/file/xepaserajinaviben.pdfIn PDF document text
- http://veterinariacasettamattei.it/userfiles/files/rijuvevawosagerazan.pdfIn PDF document text
- http://xszhuhai.com/uploadfiles/files/mobexuwarezamagezabe.pdfIn PDF document text
- http://factorycontrolprojects.com/userfiles/file/watazodekinefo.pdfIn PDF document text
- http://klaaswester.nl/img/file/zijeboz.pdfIn PDF document text
- https://sentinels.ro/userfiles/file/redagabisevuzuwozadob.pdfIn PDF document text
- https://cambodiaangkorhomestay.com/userfiles/file/gezerodowexi.pdfIn PDF document text
- http://willettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99259726412.pdfIn PDF document text
- http://globalsublimation.net/uploadfile/files/8509483219.pdfIn PDF document text
- http://chieusangducphat.com/uploads/userfiles/file/sizikawibiduxo.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/5df943cba5804272a90411dd0ad4569c/gonub.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/44677292093.pdfIn PDF document text
- https://abicecream.ru/ckfinder/userfiles/files/gaguzalalekoguk.pdfIn PDF document text
- http://kcemsp.org/upload/editor/file/koniwaritepurixotonenapar.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=verizon+wireless+smartphones+without+contractPDF link annotation
- 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_off0000b56c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB56C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD83 | 10852 bytes |
SHA-256: 1142084ef9b2160efaeaa2d9f44b4c516bb30c9f1bb48a6869581a2276087798 |
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font_02_sfnt_off0000e683.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE683 | 17960 bytes |
SHA-256: fe9176dead0b3df27871bbcd6269aba522c091fc45684624b11009541592f8c2 |
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