MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a link disguised as a 'Stihl fs 80 repair manual' which redirects to a known malicious domain, ttraff.ru. The document also contains a large number of links to PDF files hosted on Shopify, likely part of a link farm to improve SEO for malicious content. The ML classifier strongly indicates 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=stihl+fs+80+repair+manual
- http://files.tulsalines.com/uploads/1/3/1/1/131164239/7130656.pdf
- http://files.huntingtonschoolpto.org/uploads/1/3/1/4/131452836/vewanuluwuvo.pdf
- http://files.croptechseed.com/uploads/1/3/1/6/131606392/winowudodukav_duduluwifu_xejox_wejefowaluxe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/8239/0431/files/dasexoju.pdf
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/xigebewinuwitoj.pdf
- https://cdn.shopify.com/s/files/1/0435/3284/5207/files/fukafufadawosofamaw.pdf
- https://cdn.shopify.com/s/files/1/0438/7281/3211/files/8415553986.pdf
- https://cdn.shopify.com/s/files/1/0433/5599/6328/files/bazawaxegubagidokan.pdf
- https://cdn.shopify.com/s/files/1/0436/0008/5149/files/kafunak.pdf
- https://cdn.shopify.com/s/files/1/0436/6788/2134/files/25063223945.pdf
- https://cdn.shopify.com/s/files/1/0435/6951/2607/files/nanuluxopuwujazilugok.pdf
- https://cdn.shopify.com/s/files/1/0434/8523/3304/files/70372478086.pdf
- https://cdn.shopify.com/s/files/1/0431/3595/9202/files/xijeliwukokuxuxomuzipi.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_off000057dc.bin6e2aae4e4b0a85b993d534b723a62adbc6275b223a11b696fc677640ddbc0452 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57DC | 5580 bytes |
font_01_sfnt_off00006aaa.bin0fd08deb440fda14e7421ad167dc80cdba370cad86b8a89e95ea2ba7b6559141 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AAA | 11812 bytes |
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