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.cc, which is likely used to obscure the final destination and potentially deliver a payload. The document also contains a large number of links to other PDFs hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.
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.cc/wix?keyword=ss+rattan+strength+of+materials+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_04c8d2ed750348cc964112c5802ceda1.pdf
- https://static.usrfiles.com/ugd/ad2ade_49a21a953b11473fa50ce7895fa14fe0.pdf
- https://static.usrfiles.com/ugd/b8c837_492497955d6049b1af9958149695b4b1.pdf
- https://static.usrfiles.com/ugd/b8c837_41e091a9e74441d1ab7d59b58a3b6bc5.pdf
- https://static.usrfiles.com/ugd/52b593_f26fff7d69854ebc97a1d649d2ec17bf.pdf
- https://static.usrfiles.com/ugd/9734e7_51564434fddf46658ccb98cdfe0fdfed.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6822/files/52465271007.pdf
- https://cdn.shopify.com/s/files/1/0429/5337/5897/files/63321472441.pdf
- https://cdn.shopify.com/s/files/1/0436/3429/4937/files/55207283336.pdf
- https://cdn.shopify.com/s/files/1/0428/8351/4527/files/75064378415.pdf
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/knex_cheat_sheet.pdf
- https://static.usrfiles.com/ugd/b8c837_019bf0379c7b4e1faca1db5e2cfd3c5d.pdf
- https://static.usrfiles.com/ugd/9f6a24_2ed0cb042ae14da2b6690d4ecc96b721.pdf
- https://static.usrfiles.com/ugd/2b3f46_5c7169f2c8584886a16b08d4cd9ee0dc.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_off0000524c.binf1436d20d9181f3e86d4ec51d74ac3663861328c93d8421f7d3323a9d738747a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x524C | 5560 bytes |
font_01_sfnt_off000064fc.bindaee984cf704fc8c0d176b1dd44a38dda22eb9f36e9ca28681aa9efa223839ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64FC | 9896 bytes |
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