MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to manipulate search engine results. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves directing users to a malicious URL under the guise of a useful document.
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=budget+template+word+doc
- http://files.powderspringses.com/uploads/1/3/0/7/130740480/wipipuwujinisij.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7888/5280/files/jofuzuxekaduwewisazu.pdf
- https://cdn.shopify.com/s/files/1/0431/0673/0138/files/dokoluzuvesofin.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91337380597.pdf
- https://cdn.shopify.com/s/files/1/0450/3722/4094/files/budujokipa.pdf
- https://cdn.shopify.com/s/files/1/0429/7415/0809/files/xudefaladutageguse.pdf
- https://cdn.shopify.com/s/files/1/0430/5354/7677/files/synaptic_package_manager_ubuntu_17._04.pdf
- https://cdn.shopify.com/s/files/1/0433/2670/1718/files/16550787992.pdf
- https://cdn.shopify.com/s/files/1/0433/2191/7598/files/wupudawovefad.pdf
- https://cdn.shopify.com/s/files/1/0438/2988/7136/files/47309818415.pdf
- https://cdn.shopify.com/s/files/1/0432/9567/0432/files/9449206364.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/31473184827.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_off00007aec.bin2b3a0b8add401966ff22b5341f853d37af7750a15e1944078ed9dc8a2aa17d70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AEC | 5356 bytes |
font_01_sfnt_off00008d1a.bind03073283e2455e252ba445f2e9d38b785f9535a20c8abd133f207f4d701f368 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D1A | 10788 bytes |
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