MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a 'free download' lure, which aligns with the heuristic findings of a link farm and malicious redirector. 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/pify?keyword=young+wild+an+free+download
- http://files.hudsonclassical.com/uploads/1/3/1/4/131437385/bomuz.pdf
- http://files.stripesofcourage.com/uploads/1/3/1/4/131452733/vowulegux.pdf
- http://files.freedomfromcancerchallenge.org/uploads/1/3/1/6/131636789/fc4a35f826850.pdf
- http://files.vicenzas-crostoli.com/uploads/1/3/1/4/131483253/9062675.pdf
- http://files.f4f-uncdf.org/uploads/1/3/1/6/131636677/lexejeli_bizutit.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0428/0510/0707/files/kapoped.pdf
- https://cdn.shopify.com/s/files/1/0431/0591/0935/files/91140702490.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3082/files/82363825932.pdf
- https://cdn.shopify.com/s/files/1/0434/1720/6946/files/32272127773.pdf
- https://cdn.shopify.com/s/files/1/0430/8713/4882/files/fowevox.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdf
- https://cdn.shopify.com/s/files/1/0432/5759/4016/files/93598475632.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/jidexivuteg.pdf
- https://cdn.shopify.com/s/files/1/0431/6063/3504/files/45470638908.pdf
- https://cdn.shopify.com/s/files/1/0427/5663/6828/files/bakajiwuniragenevibi.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004625.bin276123b813ae25a60c30a37e22db16294726d0cc3dd06a3a95c4cb7bfbd857be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4625 | 4752 bytes |
font_01_sfnt_off00005660.bin37f9972620af526b8daca96fcad15234c16f48d017ff5691b03ec95205072081 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5660 | 11608 bytes |
font_02_sfnt_off00007c9b.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C9B | 4324 bytes |
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