MALICIOUS
162
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 'https://cctraff.ru/123?keyword=myzuka+ru+english'. Additionally, it exhibits characteristics of a PDF link farm, suggesting a campaign to distribute malicious content. The presence of a 'download button' lure further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://cctraff.ru/123?keyword=myzuka+ru+english
- https://cdn-cms.f-static.net/uploads/4407997/normal_5f9c09e3a981b.pdf
- https://cdn-cms.f-static.net/uploads/4421639/normal_5f9ba95fa0816.pdf
- https://cdn-cms.f-static.net/uploads/4365576/normal_5f871697c2f3f.pdf
- https://cdn-cms.f-static.net/uploads/4369330/normal_5f9d3004261c9.pdf
- https://cdn-cms.f-static.net/uploads/4374857/normal_5fa46f9b0e2ca.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://ronesifipule.files.wordpress.com/2020/11/64459177813.pdf
- https://woxawekobati.files.wordpress.com/2020/11/mr_robot_red_wheelbarrow_download.pdf
- https://manetomimexa.files.wordpress.com/2020/11/lugotorizereziwatogukomak.pdf
- https://uploads.strikinglycdn.com/files/7502306b-d7a1-4d90-bb87-710f7139859d/small_of_back_holster_mp_shield_9mm.pdf
- https://zegimok.files.wordpress.com/2020/11/68164288719.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_off00006e92.bin1ffb62194526b8950a85beffe7445ec6e7c73e0dc4ba652aee46813f8761b23a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E92 | 5168 bytes |
font_01_sfnt_off00008039.binbfc0904f0f0d07b2dad5b874710802535660feb5301dd45df0a8c923e4b19bcb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8039 | 2052 bytes |
font_02_sfnt_off000088ef.binf327f49e0d0bd52cf97d11584713798d62683bf72b20607d146195aa607354c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88EF | 10480 bytes |
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