MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.link/wix?keyword=bitdefender+antivirus+for+android+free`. This link is likely used to redirect the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external documents, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for phishing. The ML classifier strongly supports the malicious nature of this PDF.
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.link/wix?keyword=bitdefender+antivirus+for+android+free
- https://static.usrfiles.com/ugd/cb4a18_23f0dab67df04427bf94ebc914f01818.pdf
- https://static.usrfiles.com/ugd/85c99c_5908ba36a4e64ffda7759dd2293717f3.pdf
- https://static.usrfiles.com/ugd/1b7c00_701e3014d5eb46e1b4aec9dc8f01506b.pdf
- https://static.usrfiles.com/ugd/bb05c1_3cdb918b46294f76be004f2f09f1371c.pdf
- https://static.usrfiles.com/ugd/b8c837_c2ab82886b6241e5a85cbe95942d2347.pdf
- https://static.usrfiles.com/ugd/3b0c81_5f931880dd254ab5ab054c7916ec9599.pdf
- https://static.usrfiles.com/ugd/86319b_c6aadf88eba548f7903ae5675a1e6d7a.pdf
- https://cdn.shopify.com/s/files/1/0428/8525/1235/files/nujowurojopidi.pdf
- https://cdn.shopify.com/s/files/1/0435/7236/3432/files/aviva_healthier_solutions.pdf
- https://static.usrfiles.com/ugd/9df9d6_89110706e89f4282bc326f0135ffb74d.pdf
- https://static.usrfiles.com/ugd/0a593f_78ceee5b45b1496f9cfe5d3b5ac9396e.pdf
- https://static.usrfiles.com/ugd/b7306e_3e319fcd993f41fd97f1e89ec3798d9a.pdf
- https://static.usrfiles.com/ugd/b8c837_41f1a879c84b4894afd55fb0904adb86.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_off00008092.bin4fc057332f667d7884f3d5d346a11b09e915af39adb91cd4fda82f2b59a6be5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8092 | 4980 bytes |
font_01_sfnt_off00009198.bin3e0e88bda05adbdca8bde4ad117ac09f10c366dd08e56cfee687b6634c100a97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9198 | 10280 bytes |
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