MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://catamma.ru/uplcv?utm_term=hill+climb+race+mod+app PDF link annotation
- http://yilip.net/userData/board/file/dufugadupipunodefujudube.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/28976946185.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/6tksq0grrg5vnjt9690uq9gk7f/35189889419.pdfIn PDF document text
- http://china-miyaco.com/img/file/2021637541.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b63f8d7f850---depenoliwibafane.pdfIn PDF document text
- http://abnicum.com/files/file/68877924684.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/704a94a5781b221028d98f2a4b6755b3/fijubunejoxarevewiwana.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606dd1046d217---15534769179.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/c3a9nsigfrvtg7eo8ep26n6u52/wafotojunixatevofad.pdfIn PDF document text
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/k33ndpn50e6ngkgjhonqa52cg2/64475182854.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607801d3608c7---39954864823.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/75948794668.pdfIn PDF document text
- http://ehomeforeclosure.org/images/file/61685321544.pdfIn PDF document text
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/3fa08edd35ad4ab297e1705edd11a24b/vitopeku.pdfIn PDF document text
- http://geoodwierty.pl/files/file/regirawuwife.pdfIn PDF document text
- http://dichvugiayphep.net/hinhanh_fckeditor/file/vogubefolisuzes.pdfIn PDF document text
- http://biomassasia.net/data_ed/userfiles/file/25323242895.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160996aa25462c---62978009781.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB89 | 5144 bytes |
SHA-256: 9e3840c7d1bd32fe553646c2bca7c1e963df2736b60f7325ee1e3beb824b207d |
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font_01_sfnt_off0000fce4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCE4 | 11304 bytes |
SHA-256: 444bad79ac085aa7e13d151ddeb92ee1fbe1c71b6a92fff9a3ab628acfac503c |
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