MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of malware. The heuristics indicate the PDF functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. These links likely serve as a lure for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://chcial.ru/uplcv?utm_term=tv+azteca+sports+en+vivo+futbol+mexico+vs+costa+rica
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c47b233de1f---fafapituvinusesuzapa.pdf
- http://yuli-china.ru/d/files/29957738731.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/30c4e9d9f4d3bf159a121fc5e881fcde/kizelezunisagosakomad.pdf
- http://montgomery71.com/clients/34132/File/76421015819.pdf
- https://hansenlight.com/UploadFile/files/wokonus.pdf
- http://jar-ted.pl/file/77627132731.pdf
- http://constantcontinuity.com/membership/data//files/solijenerufimomefag.pdf
- https://rasathantrananotech.com/ckfinder/userfiles/files/56937473595.pdf
- http://adabaskimerkezi.com/upload/file/majuromulufikofem.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa4231a7e1---poganevibeg.pdf
- http://umhouses.com/uploads/files/41657171746.pdf
- http://balone.net/_upload/file///47641009289.pdf
- http://thaihotelsale.com/FileData/ckfinder/files/20210801_7DA2724297F1E5F4.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606cac10108b2---79132218906.pdf
- https://kenadong.com/contents//files/gagujedurozatituwina.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d1e47d289---kisinixuz.pdf
- https://pomacanthe-art.fr/imagebeforeafter/files/66267531218.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0ec58b98a---54715980138.pdf
- https://ferado.vn/userfiles/file/tegila.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16089c5178055a---23574596749.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4c1882ad6---5657595157.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/6028bcd97e5857fb298877fa90470d5a/lokibe.pdf
- https://protradingindia.net/userfiles/file/61645263655.pdf
- http://bonfiremadigan.com/uploads/fckeditor/file/xevojamezif.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_off0000d621.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD621 | 16792 bytes |
font_01_sfnt_off0000ee33.bin46429cd4dd262ca0a31e9771725882096b3db25e3d13d6a8af3a8866ffbf4f41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE33 | 18184 bytes |
font_02_sfnt_off00011c60.bin7e83ec79d5dca20f6b4d08830861b5ca4ee785a272250830261f110e1d0310ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C60 | 11072 bytes |
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