MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=blank+letter+template+ks2'. This URL is presented within the document body, suggesting a lure to trick users into visiting a malicious site. The PDF also contains a large number of external links, many of which are to PDFs hosted on static.usrfiles.com, indicating a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious.
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.me/wix?keyword=blank+letter+template+ks2
- https://static.usrfiles.com/ugd/fd30ac_891cf4021ad34dbc85fa297f939aca5c.pdf
- https://static.usrfiles.com/ugd/b8c837_e46242ac61bd457ca672770fdf54dfaf.pdf
- https://static.usrfiles.com/ugd/9b5f63_fa89dd2fa39a497ebc1922ba0c39719a.pdf
- https://static.usrfiles.com/ugd/b8c837_1e98666e6881420ca5d92f3b895a63e4.pdf
- https://cdn.shopify.com/s/files/1/0432/2990/5058/files/kukojav.pdf
- https://cdn.shopify.com/s/files/1/0429/5039/4019/files/c_yield_vs_list_performance.pdf
- https://cdn.shopify.com/s/files/1/0433/8086/7239/files/26588456733.pdf
- https://cdn.shopify.com/s/files/1/0431/5542/3383/files/tuvir.pdf
- https://static.usrfiles.com/ugd/9dda13_be3b38a4973643db90cfed24d4d85ce1.pdf
- https://static.usrfiles.com/ugd/804ff6_67e36a69299c484d9725a597f346ccc6.pdf
- https://static.usrfiles.com/ugd/cc14e4_5adf8a98001f413c90cd54cc74a4fa31.pdf
- https://static.usrfiles.com/ugd/2ddd39_7100c4a1cc524620ad51a71652533c9a.pdf
- https://cdn.shopify.com/s/files/1/0431/6630/2376/files/jaligelivumugab.pdf
- https://cdn.shopify.com/s/files/1/0435/7164/2527/files/ganga_action_plan_download.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a63.bin9f9faa6334285c58023eb3c9ff762cbf16ca129d327636203e411776f92db218 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A63 | 4840 bytes |
font_01_sfnt_off00006aac.binc2ba0e13b7af52fa558c51a72deff282f3fa6f37efdc7ae4579b92cdffd4ad5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AAC | 10120 bytes |
font_02_sfnt_off00008d56.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D56 | 4324 bytes |
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