MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and references 'wkhtmltopdf', suggesting it's a generated document. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious redirector. The primary malicious IOC is the redirector URL.
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/pify?keyword=biblias+de+estudio+pdf In PDF document text
- http://files.kpcouncil.org/uploads/1/3/1/6/131606343/dopagomi-wuvagovudu-ramor.pdfIn PDF document text
- http://files.turnberrypress.com/uploads/1/3/1/4/131438641/finosozemeridaj.pdfIn PDF document text
- http://files.partybcause.com/uploads/1/3/0/9/130969944/315890.pdfIn PDF document text
- http://files.finelinesfishing.com/uploads/1/3/2/6/132696351/kixojagaforu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8253/1481/files/83501281939.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7192/1571/files/24713264705.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3911/3895/files/nopuxusitemotudige.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9888/9635/files/jivikazorawenawifujow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2022/1607/files/42293801529.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3019/9966/files/jagenerefogaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9131/9200/files/78199722740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8289/9871/files/jafulisafiwava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6459/8434/files/11149002657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0954/0257/files/kedonitulijikuze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6345/2583/files/wigufadurogedixafuga.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A3E | 5128 bytes |
SHA-256: 3904b9198c5774f871c7e0dafa5ffd96e5365cf06c58c97d512e31dbe5d681eb |
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font_01_sfnt_off00005bbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BBF | 14284 bytes |
SHA-256: 1042a4ee0022c851d641ecfd435c1c1c4f145edd6c1e01c62fec3b7393022097 |
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font_02_sfnt_off0000888b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x888B | 16316 bytes |
SHA-256: 28472a57270255ab3eaf7bfef4e500001c1fa3093b76db943ae929b3d5873736 |
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