MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is characteristic of a link farm used for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, suggesting the document is designed to lead users to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=anatomia%20del%20aparato%20reproductor%20pdf
- http://files.aslanspaw.net/uploads/1/3/0/7/130776601/8dce4f874.pdf
- http://files.chardoncommunityactionteam.org/uploads/1/3/1/3/131384018/pugotut-newifuniz.pdf
- http://files.artstarts.biz/uploads/1/3/1/3/131379525/8778826.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/4441/3341/files/milekemetujobaxiv.pdf
- https://cdn.shopify.com/s/files/1/0434/2022/1607/files/zupiborefazotu.pdf
- https://cdn.shopify.com/s/files/1/0434/9978/2309/files/actionscript_3_reference.pdf
- https://cdn.shopify.com/s/files/1/0431/4732/9702/files/xupojolilisagap.pdf
- https://cdn.shopify.com/s/files/1/0437/3712/0933/files/luzerijejebetinapokaj.pdf
- https://cdn.shopify.com/s/files/1/0432/6722/7811/files/50283739364.pdf
- https://cdn.shopify.com/s/files/1/0440/1581/2766/files/learn_french.pdf
- https://cdn.shopify.com/s/files/1/0439/2045/7883/files/attributes_of_god_tozer.pdf
- https://cdn.shopify.com/s/files/1/0433/1444/6489/files/56777526959.pdf
- https://cdn.shopify.com/s/files/1/0429/1087/5815/files/nebakodiwudosolopobib.pdf
- https://cdn.shopify.com/s/files/1/0436/3301/6982/files/wordly_wise_3000_book_6_lesson_9.pdf
- https://cdn.shopify.com/s/files/1/0430/0954/0257/files/dedivamogenilufuk.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004e30.bin2d885b234ab89aa95197b8bcc3f3b23376d34394bea8be8fab5bf88bf4cff75b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E30 | 5112 bytes |
font_01_sfnt_off00005f78.binf815b5685f81cbdcf2508bc5b1fa189d50270b05a6163165bc646f6b8e432ef5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F78 | 9304 bytes |
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