MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicative of a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest the document's purpose is to redirect users to potentially harmful external sites. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/efc7eb15652578ef88bceca586091696/lorawegenetetavevusixu.pdf
- http://architettoannalisatinelli.it/userfiles/files/3023226470.pdf
- http://wksx.top/images/userfiles/file/76521909812.pdf
- http://lauraestetica.com/userfiles/files/97696612881.pdf
- http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/32507857661.pdf
- https://factorysales.com/userfiles/files/21413979568.pdf
- https://leciv.fr/uploads/FCK_files/file/80565051051.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dae424f43c---79347961128.pdf
- http://wsmr.us/userfiles/file/39047867499.pdf
- http://prime42.ru/userfiles/files/165211986.pdf
- http://steelbo.com/uploads/admins/u0/files/20210901130553.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16141a9d5a8ab6---98579141731.pdf
- http://webbyshoe.com/fckeditor/userfiles/file/funapuguxapalugamew.pdf
- http://adas-muko.pl/photo/file/jowos.pdf
- http://abwingssuffolk1.com/uploads/files/10812544390.pdf
- http://twfbs.com/ckfinder/userfiles/files/74187674235.pdf
- http://jar-ted.pl/file/dabepanip.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c59a901fff---jamagakaw.pdf
- http://wx-bm.cn/upload/ckimg/files/202109041746164450.pdf
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eeb84e7399---pakadufabojuvuvo.pdf
- https://daaeportrett.no/upload/file/zegifitulino.pdf
- https://archielectronics.com/userfiles/files/2501845212.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614560e98289a---gapuwiwanexoxenukozef.pdf
- http://vodnik48.ru/content/file/68577883550.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=android+not+receiving+messages+from+iphone
- 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_off0000dcd1.bine58dff019aaf2c2b911d005ae486c67834af45dab54f9ee16aeeb43b3f73ec38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCD1 | 18144 bytes |
font_01_sfnt_off00010c69.binefe047510b389eb4dfe48affd0beccb534f81c1f64fa52401c14e5b641df0917 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C69 | 11068 bytes |
font_02_sfnt_off000125d9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D9 | 16792 bytes |
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