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 external PDF files hosted on various domains, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure, and another flagged the document as a link farm on disposable hosting. The ML classifier and ClamAV also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain metadata rather than user-readable content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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://cctraff.ru/123?utm_term=elephant+seal+fights+car In PDF document text
- https://gugimamerid.weebly.com/uploads/1/3/4/6/134606591/jazema-gexewogisofepe-daxuwegip.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387052/normal_5fe13ea650286.pdfIn PDF document text
- https://xufiwelak.weebly.com/uploads/1/3/1/1/131164558/rixunapokulobivukeve.pdfIn PDF document text
- https://bizitaninajoki.weebly.com/uploads/1/3/5/3/135316521/tarafomopaj_xatuguweso_zilidefusakog_famad.pdfIn PDF document text
- https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/kukagonuwusanukul.pdfIn PDF document text
- https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/rorenexilorinuwe.pdfIn PDF document text
- https://cdn.sqhk.co/xakatikakizi/4eqhgRn/44789734615.pdfIn PDF document text
- https://cdn.sqhk.co/libibajuzumu/bIhiihi/lirizolomitepab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492281/normal_5fd78a0aedb5a.pdfIn PDF document text
- https://cdn.sqhk.co/mevojazix/hphbmdh/talking_tom_cat_game_free_download_for_computer.pdfIn PDF document text
- https://midumelu.weebly.com/uploads/1/3/4/3/134341446/bironavo.pdfIn PDF document text
- https://cdn.sqhk.co/jeposanop/igVpRNH/62442659896.pdfIn PDF document text
- https://cdn.sqhk.co/todusukiraxi/mOggjgr/96523544706.pdfIn PDF document text
- https://cdn.sqhk.co/zifiguwosu/Zidi6Kr/fizexufezarasex.pdfIn PDF document text
- https://cdn.sqhk.co/gupidiroka/jjYOzBV/rusk_deepshine_color_chart_book.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/07935a90-18d7-4b94-b035-0a57c8951aea/vabivegibobosavubima.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9659092f-1370-409d-a16b-fe14671a3adc/83966210016.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cbcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBCC | 4912 bytes |
SHA-256: 4ba29fd87cac85941f9ebdd0178126b73a8617b8222d1100a602426d487019af |
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font_01_sfnt_off0000dc6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC6F | 10784 bytes |
SHA-256: 49ba1545912f7dbe1b4dcb8398fd2c65232141c11b62f536e29b6f4321b928e7 |
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font_02_sfnt_off000100d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100D4 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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