MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru' with a keyword suggesting a game download lure. The document body, though heavily obfuscated, also contains this URL. The presence of numerous other PDF links, many hosted on Shopify and static.usrfiles.com, suggests a link farm or a method to obscure the final malicious destination. The ML classifier strongly indicated maliciousness.
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=soul+calibur+4+rom
- https://cdn.shopify.com/s/files/1/0429/7916/4314/files/snt_tc_1a_2020_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/93373046141.pdf
- https://cdn.shopify.com/s/files/1/0434/8523/3302/files/xovuvenajolaviren.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdf
- https://cdn.shopify.com/s/files/1/0428/8996/9820/files/windows_7_sa_stika.pdf
- https://cdn.shopify.com/s/files/1/0429/3135/5807/files/9623467953.pdf
- https://cdn.shopify.com/s/files/1/0430/6341/0845/files/fifemoserovelilovuno.pdf
- https://static.usrfiles.com/ugd/b8c837_21b9ebe27ef7402f87e0d0f199e9f391.pdf
- https://static.usrfiles.com/ugd/b8c837_f2f26b1b0fb64600a79035d287cac504.pdf
- https://static.usrfiles.com/ugd/b8c837_b6a6905393e14c2a9984543f9c41cd67.pdf
- https://static.usrfiles.com/ugd/b8c837_9e6a3929249e468a8f60bc57758d863e.pdf
- https://static.usrfiles.com/ugd/b8c837_a8977a81fa1544d79f2289a7fe1f5aff.pdf
- https://static.usrfiles.com/ugd/b8c837_3afb62630ef040858cd9bfdcd2fbf346.pdf
- https://static.usrfiles.com/ugd/b8c837_249d48c19f4e44d79ddff24efe81c97d.pdf
- https://static.usrfiles.com/ugd/b8c837_d92458ecee1c45c6b35af5bffbd129bb.pdf
- https://static.usrfiles.com/ugd/b8c837_7df349b8dad545d58ed9b50e11a55cc5.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_off00004949.bin02238674963b3ff1185e11b975f4c74cd04fd20c9d3c616fe11f622d5ed567e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4949 | 5096 bytes |
font_01_sfnt_off00005a83.bin57347cbff7893e56a3fc967321702bc641284747ab6becbcf44ce7cea62c8dd9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A83 | 9952 bytes |
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