MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=seiyuu+danshi+audition+guide'. This URL is presented within the document body, suggesting a lure to trick the user into visiting a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, further supporting the malicious intent of redirecting users to external content. 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.cc/wix?keyword=seiyuu+danshi+audition+guide
- https://static.usrfiles.com/ugd/b8c837_66acace23f7948cab8c857045f26fa7b.pdf
- https://static.usrfiles.com/ugd/b8c837_5b0552f6909d4ddd9549ca0bf470489b.pdf
- https://static.usrfiles.com/ugd/b8c837_e0e62151f5aa4009897c31c951668580.pdf
- https://static.usrfiles.com/ugd/b8c837_704ef12faca146379862905ae61921d5.pdf
- https://static.usrfiles.com/ugd/b8c837_a537ae959a0645fc88f83c3f9f9ff5cd.pdf
- https://cdn.shopify.com/s/files/1/0430/8929/7568/files/nalul.pdf
- https://cdn.shopify.com/s/files/1/0431/4854/2109/files/biwuduvijigirimisiluwa.pdf
- https://cdn.shopify.com/s/files/1/0436/7548/4313/files/remefom.pdf
- https://cdn.shopify.com/s/files/1/0432/9360/6046/files/7859838823.pdf
- https://static.usrfiles.com/ugd/b8c837_730f6af2580a4863a0cbe49c81939df6.pdf
- https://static.usrfiles.com/ugd/b8c837_46fcd9b0a21a4915936cc0e767b0b75e.pdf
- https://static.usrfiles.com/ugd/b8c837_4aaee83269cd41b0a004663ce5331d96.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_off000076bc.bin45ea1bed5576a1977ce39a4c57f9feb57e4aaf4566a86d1c692d92643b304b4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76BC | 2940 bytes |
font_01_sfnt_off0000813b.bin41b91e890f7decfac5019b9d1b21116cf6c7902bf17a37028d4aa3d15f736e97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x813B | 5164 bytes |
font_02_sfnt_off000092cd.bin13a0419517c91ca046911a28077101db8d91a0a188cfaf62511dc24053b8eb02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x92CD | 11172 bytes |
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