MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a 'Hot springs spa manual 2017'. The document also functions as a link farm, pointing to numerous other PDF files hosted on various domains, suggesting a broad distribution effort. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains suspicious elements like duplicate object bodies.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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://ttraff.ru/wb?keyword=hot%20springs%20spa%20manual%202017 In PDF document text
- http://files.saujs.co.za/uploads/1/3/2/6/132681824/8694376.pdfIn PDF document text
- http://files.kingfisherpbs.org/uploads/1/3/2/6/132681602/fbc377f49.pdfIn PDF document text
- http://files.hlhas.com/uploads/1/3/1/4/131483550/wuvoxipepuzan.pdfIn PDF document text
- http://files.txpunk.net/uploads/1/3/0/7/130776578/36e3926afd116.pdfIn PDF document text
- http://files.themudlakeproject.ca/uploads/1/3/1/4/131407665/2735271.pdfIn PDF document text
- http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdfIn PDF document text
- http://files.lovemadebyketurah.com/uploads/1/3/1/4/131453869/bosun.pdfIn PDF document text
- http://files.head-to-toe-ministries.com/uploads/1/3/0/7/130776826/4207017.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://serumaputafe.files.wordpress.com/2020/06/xezitapizexusuj.pdfIn PDF document text
- https://lezidonopo.files.wordpress.com/2020/06/17296605022.pdfIn PDF document text
- https://kagowujaludu.files.wordpress.com/2020/07/xivebitep.pdfIn PDF document text
- https://xupapinir.files.wordpress.com/2020/07/fadedon.pdfIn PDF document text
- https://finegul.files.wordpress.com/2020/07/jabifemunemevuparixap.pdfIn PDF document text
- https://mudobemazi.files.wordpress.com/2020/06/10554338320.pdfIn PDF document text
- https://gefujonusa.files.wordpress.com/2020/06/febonuwakewulixiguw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dosadibevejigavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55497749658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54748680829.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bamizubonofosexewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.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_off00007fa9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FA9 | 5268 bytes |
SHA-256: 3b805a67a963bd25d04ba700a2636cfc10f14b43266278722710354e708749ff |
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font_01_sfnt_off0000917b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x917B | 10828 bytes |
SHA-256: f11cab162993a7c5e21eec631364c7b86112b3d7177c6e265e91e2225a87c36c |
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