MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to distribute further malware or phishing content. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on static.usrfiles.com. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is part of a malicious campaign, likely spearphishing.
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=kaiserreich+second+american+civil+war
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/cf14a4_44497e96b9654931b803b1d46f8ef30a.pdf
- https://static.usrfiles.com/ugd/06497e_03259ebdff904723b6618d3928b92832.pdf
- https://static.usrfiles.com/ugd/b8c837_4493515617504ad09353387c5f78dac8.pdf
- https://static.usrfiles.com/ugd/576447_79dc8ef154de40e7a86659bc16542fe2.pdf
- https://cdn.shopify.com/s/files/1/0438/1258/5634/files/bulagubabamejisawotuzal.pdf
- https://cdn.shopify.com/s/files/1/0428/4583/1335/files/ecg_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/7448/5401/files/ansi_c_programming.pdf
- https://static.usrfiles.com/ugd/8b9728_c076fc9675ff4eca9c544b8357b97f22.pdf
- https://static.usrfiles.com/ugd/9219f8_239174891cec4adba7660e9c14a1eb46.pdf
- https://static.usrfiles.com/ugd/599f1c_8df03f488bf94b779ab2e778d1534e3a.pdf
- https://static.usrfiles.com/ugd/b8c837_2bfbce9e99b9418aa57e31d4dbabc5c6.pdf
- https://static.usrfiles.com/ugd/b8c837_881cf17a5c4749aba71450fa4b908378.pdf
- https://cdn.shopify.com/s/files/1/0440/7921/8840/files/71185760993.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/rijesi.pdf
- https://cdn.shopify.com/s/files/1/0434/1386/4602/files/gusorimeridatelugazukoza.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_off000069c1.bin3a532b4d8da6786a8e049cf6c1a449c6d0c62c622218177fa1303d1840d245dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69C1 | 5300 bytes |
font_01_sfnt_off00007ba8.binde41e6f20bfb6956bc985a8d88a7f4c19a216bd6e80817335331ce33508b3134 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA8 | 9600 bytes |
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