MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The ML classifier also strongly indicated maliciousness. The primary malicious link identified is https://ttraff.ru/pify?keyword=complementary+filter+pdf, which is likely used to redirect users to further malicious content. The document body itself appears to be malformed or obfuscated, but contains references to the URLs.
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=complementary+filter+pdf
- http://files.artlifedelhi.com/uploads/1/3/1/3/131380295/mitiko.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/2961/7057/files/2623919307.pdf
- https://cdn.shopify.com/s/files/1/0431/8344/0030/files/dozozixene.pdf
- https://cdn.shopify.com/s/files/1/0431/4306/9858/files/jojonanolilagaribal.pdf
- https://cdn.shopify.com/s/files/1/0436/0850/6531/files/simple_english_translation_book.pdf
- https://cdn.shopify.com/s/files/1/0432/8144/9118/files/54013887178.pdf
- https://cdn.shopify.com/s/files/1/0432/4661/6733/files/wezuxale.pdf
- https://cdn.shopify.com/s/files/1/0461/4337/3480/files/sizefadijer.pdf
- https://cdn.shopify.com/s/files/1/0428/5382/6726/files/83376218220.pdf
- https://cdn.shopify.com/s/files/1/0434/0298/5626/files/architectural_drawing_course.pdf
- https://cdn.shopify.com/s/files/1/0447/3644/6613/files/hannah_s_bretzel_nutrition.pdf
- https://cdn.shopify.com/s/files/1/0431/2124/6359/files/xuwibigetugavek.pdf
- https://cdn.shopify.com/s/files/1/0438/1540/3682/files/bobcat_863_manual.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_off00005f8e.binb4b4a89d7871bc07b06727a62d310a83af5106f01f8eb375a24a1e29cd297d70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F8E | 5016 bytes |
font_01_sfnt_off00007089.bin9a1448a5712b84c12ea392fd3fe1b55104569ad59b319279386d7564a2834380 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7089 | 10772 bytes |
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