MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. It also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=vaillant+ecotec+pro+28+installation+manual', suggesting a lure to a malicious site disguised as a manual download.
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=vaillant+ecotec+pro+28+installation+manual
- http://files.usclublax.com/uploads/1/3/1/6/131607103/4cd03102.pdf
- http://files.compassionate-language.com/uploads/1/3/1/4/131437513/5457804.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/0818/6792/files/jefoxuvipijinija.pdf
- https://cdn.shopify.com/s/files/1/0434/4391/2854/files/68432628761.pdf
- https://cdn.shopify.com/s/files/1/0430/9411/4453/files/identifying_character_feelings_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0431/9081/2821/files/44396231269.pdf
- https://cdn.shopify.com/s/files/1/0437/6598/9530/files/zomifobobapeloziboxoxik.pdf
- https://cdn.shopify.com/s/files/1/0432/6549/1106/files/95900053552.pdf
- https://cdn.shopify.com/s/files/1/0434/0937/5383/files/12078974759.pdf
- https://cdn.shopify.com/s/files/1/0438/9827/3944/files/1814203604.pdf
- https://cdn.shopify.com/s/files/1/0432/9324/5600/files/astor_piazzolla_oblivion_guitar.pdf
- https://cdn.shopify.com/s/files/1/0434/2687/3509/files/noun_clauses_exercises_with_answers.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_off000046fd.bin6b5bcbcb65060b8abfd319074fad8746b77b9759b2de0bdfc95999c720a57578 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46FD | 5368 bytes |
font_01_sfnt_off00005921.bin11922901b3e04b21f99e578ada6b0d18951f3bc0e2888dae93a46843ffa0e19d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5921 | 10140 bytes |
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