MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links pointing to various external PDF files, many hosted on disposable domains. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The presence of a known malicious redirector URL further supports the malicious nature of this document. ClamAV and ML classifiers also flagged this file as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://yafferge.ru/aws?utm_term=best+ballistic+calculator+for+android In PDF document text
- http://jabodaligononu.iblogger.org/jurnal_konsep_pendidikan_islam.pdfIn PDF document text
- https://cdn.sqhk.co/zogameva/igkjchc/pc_builder_parts.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489975/normal_6021bbd843569.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392668/normal_600bb6bd7c05a.pdfIn PDF document text
- https://cdn.sqhk.co/xokekekav/nnnnigU/lefuwumok.pdfIn PDF document text
- https://cdn.sqhk.co/murerezusa/ihggHBo/wilderness_survival_handbook.pdfIn PDF document text
- https://memelixuluxowi.weebly.com/uploads/1/3/5/9/135958522/d2142278.pdfIn PDF document text
- https://pegigisujojefuf.weebly.com/uploads/1/3/1/4/131413718/4721034.pdfIn PDF document text
- https://cdn.sqhk.co/tokafumotebi/qDfOhcl/balls_drop_diagram.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501660/normal_5fe43deb3e918.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409602/normal_600484d23216a.pdfIn PDF document text
- https://cdn.sqhk.co/wefenosefob/iheGgcH/nautical_life_saver_pillow.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454808/normal_5ff17b5310e9f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418001/normal_5fc61a59f2002.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wupubobetob.epizy.com/29995775740.pdfIn PDF document text
- http://vufeligix.rf.gd/54735575598.pdfIn PDF document text
- http://xibobok.rf.gd/1315316454.pdfIn PDF document text
- http://dekuravimej.epizy.com/symphony_orchestra_music.pdfIn PDF document text
- http://wudafozejuniv.rf.gd/castaer_campesina_canvas_platform_espadrilles.pdfIn PDF document text
- http://bobupugarini.epizy.com/unscented_dryer_sheet_uses.pdfIn 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_off0000b7e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7E8 | 5204 bytes |
SHA-256: 6bb3b7d5c12b510f93e1fecd9cc55383a3c6f0b106b6fae02e4c41614126d543 |
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font_01_sfnt_off0000c9a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9A5 | 9636 bytes |
SHA-256: adef2afdf10af54b225889f38d1900ba81af3b489927db2ee8f793595ce1e341 |
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