MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs that form a link farm, directing users to potentially malicious content. Heuristics indicate these links are hosted on compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://oniceh.ru/uplcv?utm_term=download+pokemon+fire+red+version+apk
- http://miryangpension.com/FileData/ckfinder/files/20210903_7F360E6588547C9C.pdf
- http://chongthamphucthang.com/images/news/files/wigopovizesexafap.pdf
- http://quangphong.vn/uploads/image/files/wosofovobigudawafumugamu.pdf
- http://stisk.com/file/81511294142.pdf
- https://phongkhamtamthan.net/uploadeditor/files/14169864864.pdf
- http://kwong-cheong.com/userfiles/bowijumozelosiwukuluto.pdf
- http://extrastyle.ee/ckfinder/userfiles/files/64231189489.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/7c561b9d14fa23e28feb0eeaec67dbf1/nasunoxefeluwak.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/d3a0b6c75077257e9ace059a37fd8d4e/11095290885.pdf
- http://wonikquartz.com/upload/editor/file/1631336601.pdf
- http://tyextractor.com/d/files/fobarezoxuvorutadelon.pdf
- https://www.habitat-morvan.fr/ckfinder/userfiles/files/56667384201.pdf
- http://kondicionery-noginsk.ru/upload_picture/file/zigewexako.pdf
- http://apartmany.cucoriedka.sk/data/files/75164696628.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131ff8e9f4fb---5807057798.pdf
- http://bilateralmatters.org/userfiles/file/67792975427.pdf
- http://www.oomedia.com.tw/ckfinder/userfiles/files/xuvinor.pdf
- http://jjkxmy.com/upload/files/202109171212303612.pdf
- http://gurukripapublicschool.com/userfiles/file/zivesezo.pdf
- http://hoangminhceramics.com/app/webroot/uploads/files/kamebabefolopegudox.pdf
- https://lesrimaudieres.com/images/uploads/file/lemasojuta.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/rlos393rrohanca0tht0d7k87n/muganuworosez.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141666e19cc0---34439936672.pdf
- http://poiskvod.ru/images/file/xavozefefot.pdf
- http://burelomdo.com/ckfinder/userfiles/files/15843054869.pdf
- https://netcsemege.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/jijibokoduz.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_off0000b7b0.bin019818f20eb84603da4a3a00499aae5f611615b6253a0f6c489a07c7737d47e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7B0 | 15740 bytes |
font_01_sfnt_off0000e005.bin4898cf93e0c23e3b6e29af425888d9c2457263b5afd460f25953d4f1adccae80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE005 | 10808 bytes |
font_02_sfnt_off0000f8ee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8EE | 16792 bytes |
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