MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised WordPress sites or disposable domains. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggest the primary goal is to redirect users to potentially malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://chcial.ru/uplcv?utm_term=amicable+settlement+in+tagalog
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/49b01be82e739b76ecd5f6572f8357ed/tusugepawogerigomanajeka.pdf
- http://alumcity.ru/userfiles/file/putulesu.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160862cf6aeaf3---951551525.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608588ec5bc80---10644053635.pdf
- https://agatanorek.com/files/file/gimozos.pdf
- http://fitnessklub-impuls.pl/uploads/assets/file/36724499276.pdf
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/c35484134a7f8909518be35a4af882e1/66963447303.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/ighm1l42pk40a78o0ml2o2jm0i/22651710585.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160753a2b3c63e---zexubulelapepiwe.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c2a3f447ff3---devadoliwoxinofop.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/28e975b4cfe4260d21bea6645bb98d35/rilunekomid.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/f5d1cae9ce3ea7e8e77d5b578f409c52/47437973774.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608381f00fb20---259982313.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1849494f9---74896614359.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b62ea21546---44532407329.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de80d6d4330---girifewavugegan.pdf
- http://hoangminhphatkorea.com/webroot/img/files/vemanirokoxajuk.pdf
- https://tepihtrava.rs//files/tonemu.pdf
- http://www.emailposte.com/pictures/tujiwevami.pdf
- https://hotellemaritime.com/hotel/upload/files/60112878094.pdf
- http://tpdw.pl/userfiles/file/sorivodi.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/ll5r0af8jktnjngql0dkbvqdrs/fatakalixoguxezigir.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_off0000bf89.bin825663609668890de096135ecb42e864df3748c6f7d7f037a84227c483d3507f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF89 | 16140 bytes |
font_01_sfnt_off0000e965.bin92758ac2b838ff79b031bf2d7d0561bd899abf5f222dbbf26119f83116d40c41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE965 | 10592 bytes |
font_02_sfnt_off000101a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A6 | 16792 bytes |
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