MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains embedded links, one of which, 'https://ttraff.ru/wix?keyword=bluetooth+driver+installer+free++windows+8', is identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to 'Bluetooth driver installer free windows 8', suggesting a lure to download malicious software. The presence of numerous other PDF links, many pointing to 'static.usrfiles.com', indicates a link farm strategy, likely to distribute or mask the malicious payload.
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=bluetooth+driver+installer+free++windows+8
- https://static.usrfiles.com/ugd/b8c837_dd478a87a217432d8bf1dbebc761b52b.pdf
- https://static.usrfiles.com/ugd/0d2908_b337fefaf86046ef80cb5d5b62e4895a.pdf
- https://static.usrfiles.com/ugd/a91264_a7225c33ef1e4e268204154b406c42a9.pdf
- https://cdn.shopify.com/s/files/1/0435/8357/0083/files/bharat_ane_nenu_song_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0438/6009/9222/files/nujenexixa.pdf
- https://cdn.shopify.com/s/files/1/0462/8489/8464/files/new_odia_movie_song_video_3gp.pdf
- https://cdn.shopify.com/s/files/1/0438/4843/3829/files/83695598086.pdf
- https://cdn.shopify.com/s/files/1/0438/4351/8629/files/gravity_falls_torrent.pdf
- https://cdn.shopify.com/s/files/1/0431/5987/9834/files/calabozos_y_dragones_requiem_comic.pdf
- https://cdn.shopify.com/s/files/1/0430/5459/6250/files/bipija.pdf
- https://static.usrfiles.com/ugd/90c678_3c092c7ccebc4307a9ed251d50adb96b.pdf
- https://static.usrfiles.com/ugd/b8c837_7c0483a44233446fa93c17cea1211680.pdf
- https://static.usrfiles.com/ugd/599f1c_10775f8c50034dce93d80ae0f44cefa4.pdf
- https://static.usrfiles.com/ugd/0d002d_6e5114457cca4c13b1d7dad0fb2bfe17.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_off00006d15.bin9cd677ece1cf6ff46937f6e35efaa2b80497b274f68b0e635cb0d1d3616c98b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D15 | 5392 bytes |
font_01_sfnt_off00007f7b.bin4e9b461b4afaf1996780a380ee0ec3ef86ca47dd7fb43d459185865f14156570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F7B | 10156 bytes |
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