MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. Additionally, it exhibits a PDF link farm heuristic, with numerous links to static.usrfiles.com, suggesting an attempt to manipulate search engine results or distribute content. The presence of a visual download button lure further supports the malicious intent. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.
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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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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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=latest+pdf+to+word+converter+free+do
- https://static.usrfiles.com/ugd/b8c837_bba919c11bb14f9694b66fad55a6b759.pdf
- https://static.usrfiles.com/ugd/078c79_aba0de76ff844640a1162d2a3ddd9f47.pdf
- https://static.usrfiles.com/ugd/77d535_243cbc89dc644659844c9468dcbb6d3b.pdf
- https://static.usrfiles.com/ugd/b8c837_fe61b04f4b294251bdd78429d1596deb.pdf
- https://static.usrfiles.com/ugd/b8c837_280c99c108fa45328f68c20215991b70.pdf
- https://static.usrfiles.com/ugd/b8c837_5c67f7cb46ec4db4bb313ee2c5d72f4c.pdf
- https://static.usrfiles.com/ugd/353d00_39e8f33b34e54be2a80f1d98ea3a942d.pdf
- https://static.usrfiles.com/ugd/e4a001_d0c334f79c084cb1aef3146dede4646e.pdf
- https://cdn.shopify.com/s/files/1/0434/2736/5031/files/apnea_de_sueo_tratamiento.pdf
- https://cdn.shopify.com/s/files/1/0431/6227/1898/files/wodigebabuzanuriva.pdf
- https://cdn.shopify.com/s/files/1/0428/2341/8019/files/paxisiwefuwuje.pdf
- https://cdn.shopify.com/s/files/1/0434/6734/1981/files/rojakakifufutukemewisow.pdf
- https://cdn.shopify.com/s/files/1/0428/3557/4943/files/76161654794.pdf
- https://cdn.shopify.com/s/files/1/0434/9027/9574/files/jokawamepukokoke.pdf
- https://cdn.shopify.com/s/files/1/0435/9726/7112/files/93293716557.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000635b.bin2fb3261128373947d5c92bc5973cb9c0336d5831acd6a1603e3eb58baa531670 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x635B | 5208 bytes |
font_01_sfnt_off00007545.bina25d69984f7bb02498b2d648c2545c5b1aa0febabaded9a2fb74c504b604c135 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7545 | 10344 bytes |
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