MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as content related to 'bobobo- bo bo- bobo online'. This suggests a phishing or scam attempt to redirect users to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links and a link farm. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.
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/wix?keyword=read+bobobo-+bo+bo-+bobo+online
- https://static.usrfiles.com/ugd/b8c837_599af717375b49ce8ebeaa38fab98f12.pdf
- https://static.usrfiles.com/ugd/a2e20a_3e96824b85b04b0781d3c09338492add.pdf
- https://static.usrfiles.com/ugd/7baf93_40d6c319b0fe4732a9338560201b75a2.pdf
- https://cdn.shopify.com/s/files/1/0431/9703/8756/files/birafelilapixaselimaveg.pdf
- https://static.usrfiles.com/ugd/b8c837_8e4cc09ce77144f481f2c42116eca8ad.pdf
- https://static.usrfiles.com/ugd/67e251_ee5e6406ada246cf83fc0beb1c9a23fb.pdf
- https://static.usrfiles.com/ugd/ab059d_03a966326dda499b9a87cea214b24df5.pdf
- https://static.usrfiles.com/ugd/b8c837_5f8358369e3c4c76b7e1d3a4c201b95e.pdf
- https://static.usrfiles.com/ugd/cc089a_8def09b1cf60420ab5e339bd179fff13.pdf
- https://cdn.shopify.com/s/files/1/0440/8256/1176/files/13272941581.pdf
- https://cdn.shopify.com/s/files/1/0429/5943/7975/files/raxomimafetagixepamew.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/
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004917.bin15d66eccec35aba1a43e421c4f63b6ea88f86b72c7598f4b397aca3af618353d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4917 | 4432 bytes |
font_01_sfnt_off00005828.bin565482313cbf2e067b3c2305312c76d00de2959f78a49f17a98a2137510a1053 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5828 | 9988 bytes |
font_02_sfnt_off00007a93.bin93c68bbf271e895223f6c768439d1eb6c0b502875bc087daae942cc0c8b685a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A93 | 16172 bytes |
font_03_sfnt_off00008f95.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F95 | 4324 bytes |
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