MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic identifying a redirector link to 'ttraff.ru' and a link farm heuristic pointing to multiple PDF hosting domains. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to download further content or navigate to malicious sites. The presence of these link farms and redirectors indicates a campaign focused on SEO poisoning or traffic redirection to malicious infrastructure.
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=pediatric%20liver%20transplantation%20pdf In PDF document text
- http://files.honeyofthehive.com/uploads/1/3/1/3/131398440/wosilet.pdfIn PDF document text
- http://files.566westadams.com/uploads/1/3/0/9/130969235/2acd35.pdfIn PDF document text
- http://files.nonails.net/uploads/1/3/2/7/132740618/f1cf812d8481.pdfIn PDF document text
- http://files.jacksherd.com/uploads/1/3/2/6/132695836/lelitoruvara.pdfIn PDF document text
- http://files.fccvideo.org/uploads/1/3/0/7/130738753/5191025.pdfIn PDF document text
- http://files.fustlerthefemalehustler.com/uploads/1/3/0/7/130739839/gaxiwoloxakutenuboj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://dakenoxuw.files.wordpress.com/2020/06/33682316593.pdfIn PDF document text
- https://turajudodaj.files.wordpress.com/2020/07/padevuramaxilegabez.pdfIn PDF document text
- https://fuxofifusod.files.wordpress.com/2020/07/19314516691.pdfIn PDF document text
- https://terokowexo.files.wordpress.com/2020/06/55831587160.pdfIn PDF document text
- https://xepekuxilaju.files.wordpress.com/2020/07/wuwetafigogodexa.pdfIn PDF document text
- https://lisujivinixi.files.wordpress.com/2020/07/lisederukituxemosive.pdfIn PDF document text
- https://rexakufemuv.files.wordpress.com/2020/06/dedoxavofelawimagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.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_off00013588.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13588 | 4996 bytes |
SHA-256: 5d49154bba1b18ad93cf367344d8e40bde9b710f29753a743f06839bfe1bdee1 |
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font_01_sfnt_off00014689.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14689 | 15600 bytes |
SHA-256: 01ac6648c833d44e5705818f993784497855d3901a3584d120e2715a1c9445cb |
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