MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous links to potentially malicious sites strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://daejonggyoyc.com/userfiles/file/20210911010223.pdf In PDF document text
- https://willes-gb.com/uploads/files/202109101731039472.pdfIn PDF document text
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/6f26313952b58cf9c24e60c5067f09b1/85083505319.pdfIn PDF document text
- http://wasserentkalkung.at/ckfinder/userfiles/files/9288883802.pdfIn PDF document text
- http://urbanposthotel.com/admin/ckfinder/userfiles/files/30512969156.pdfIn PDF document text
- https://tonwen.org/userfiles/file/doxiko.pdfIn PDF document text
- http://bnblspecialities.com/userfiles/files/vumukiwigagerodiv.pdfIn PDF document text
- https://svenjakretschmer.com/ckfinder/userfiles/files/wukitok.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/ocs6h71uaa06gvvoblntbqh7p0/relepufiwasuvul.pdfIn PDF document text
- http://polyalpan.hu/_user/file/kidavarazuxudunegodosax.pdfIn PDF document text
- http://vkts.se/userfiles/file/pedixopisofejoj.pdfIn PDF document text
- https://arab-hams.com/Ups/files/46719117037.pdfIn PDF document text
- http://galerie45.com/userfiles/file/27302746614.pdfIn PDF document text
- http://www.cddfct.com/up_files/file/jibinedizejogoxolav.pdfIn PDF document text
- http://sameiroeventos.pt/ficheiros/dodemovedarogodazipu.pdfIn PDF document text
- https://akamercedes.com/images/uploads/files/49324654924.pdfIn PDF document text
- https://titishop.co/upload/files/87874613074.pdfIn PDF document text
- http://autavrabek.cz/obrazky/file/21222042855.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/9d66429a5fc90e7125529a4e8e4309a3/86524823154.pdfIn PDF document text
- https://opsclown.it/ckfinder/userfiles/files/fisotajaluviz.pdfIn PDF document text
- http://flixgolf.com/ckeditor/ckfinder/userfiles/files/57864358602.pdfIn PDF document text
- http://ipceurope.eu/assets/file/6407990724.pdfIn PDF document text
- http://tt-ural.su/admin/ckfinder/userfiles/files/xawanevekevilumejizijota.pdfIn PDF document text
- http://pasted-radio.de/web/files/vedamenodasunulivu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=is+rubidium+a+metal+nonmetal+or+metalloidPDF 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_off0000ce42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE42 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e654.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE654 | 17348 bytes |
SHA-256: a66fe62aa5f566e78c47f84117f9669d61b24b399ab7d1aaf9f16950315e586c |
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font_02_sfnt_off000112f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112F7 | 10600 bytes |
SHA-256: 28452dc4eba083923574c3a2529c8382ad826f85a865e368134b7c69d116146d |
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