MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm with numerous URLs pointing to potentially compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of multiple external URIs and a link farm on disposable hosting further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/0pm8073a4c5evvhuv745j95j71/posemivisumir.pdf
- http://christmaslandint.com/userfiles/xebolemezuwofuzenuterofem.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372d6a9b0a2---65229757444.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6943554de---kezebufubiguzor.pdf
- http://srmtteaparty.com/uploads/files/202109080945416706.pdf
- https://cet.sk/res/file/faluzotaxawe.pdf
- https://leosservices.com/userfiles/file/23031657798.pdf
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/88917074977.pdf
- https://emotionalgift.com/ckfinder/userfiles/files/80879132185.pdf
- https://ipic.vn/userfiles/file/fokuvo.pdf
- http://aroma-es.site/yamituki-n/uploads/files/55234257442.pdf
- https://rosanaalvarracin.com/userfiles/file/rupowexevawedana.pdf
- http://rasciindia.com/firetech/ckupload/files/94578320150.pdf
- http://bookblog.kr/data/file/files/53205641132.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/567l442pb76h1q731iierckgkp/nokejesiwurubibukezi.pdf
- https://birutelorasin.com/contents/files/30709870967.pdf
- http://slsnn.ru/content/files/72185546492.pdf
- http://ghibms.com/userfiles/files/1513272590.pdf
- http://deurenhanger.nl/userfiles/file/63170784315.pdf
- http://siamintertrade.com/file_media/file_image/file/56871282392.pdf
- https://parklanehotel.asia/userfiles/file/fawabiralopij.pdf
- http://seasonsblinds.com/uploads/ckfinder/userfiles/files/lekezokimuzujebodegawumer.pdf
- http://presssimayeshahr.ir/pic/file/renig.pdf
- http://newmob.it/userfiles/files/2721815750.pdf
- http://j-line.ca/fck_upload/file/dumukegijopu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=campbell+biology+3rd+edition+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_off0000c64f.binf13bf8da52d0e2dad011ac45e703a5307fe61d9926886d7eaaa24e0e7922ff7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC64F | 17728 bytes |
font_01_sfnt_off0000f3f0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F0 | 16792 bytes |
font_02_sfnt_off00010c07.bin93fee309d49cbb304da28f8f0ba5943c2722eabfb98c866076357c09ba1991ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C07 | 11128 bytes |
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