MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious due to a critical heuristic identifying a link to known malicious redirector infrastructure. Additionally, another critical heuristic detected a large number of external PDF links, suggesting a link farm or SEO abuse. The ML classifier also strongly indicated maliciousness. The primary IOC is the redirector URL, which is likely the initial point of contact for a phishing or malware delivery scheme.
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=aashiqui+audio+songs++telugu
- https://static.usrfiles.com/ugd/3ceeb9_5dca8db4718348ae80971adf790ab513.pdf
- https://static.usrfiles.com/ugd/764aaa_66f3b7b673294b5fb464f09f3d6b2c37.pdf
- https://static.usrfiles.com/ugd/a107db_c9dd058e2058497e9db9a7245b63309f.pdf
- https://static.usrfiles.com/ugd/fd30ac_6e9a4752f53943b2aefa2ee1b11a17f8.pdf
- https://static.usrfiles.com/ugd/3e9e83_c374796b56fe4f32805ab851cbaf6acc.pdf
- https://static.usrfiles.com/ugd/b8c837_8e1b253cbb1f4a0d8a0cbfac212b163b.pdf
- https://static.usrfiles.com/ugd/bf650e_b84528d4d2cb4d96bf94768a2d7e9496.pdf
- https://static.usrfiles.com/ugd/6cfc61_bc2810ad9cc14286b38725e7c4b85e5c.pdf
- https://static.usrfiles.com/ugd/47b1e8_3d4a259a33c44446b2110ca73bcec704.pdf
- https://static.usrfiles.com/ugd/aa14a9_eaa86efbf1974765baff79a04d313758.pdf
- https://static.usrfiles.com/ugd/895bef_acb9a2efb98148e2a4377f43c1e48664.pdf
- https://static.usrfiles.com/ugd/b8c837_549c9876e97844ce934c9dd34441b7b0.pdf
- https://cdn.shopify.com/s/files/1/0438/2185/8973/files/31016306906.pdf
- https://cdn.shopify.com/s/files/1/0431/8029/4306/files/wiridirulisij.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_off00009530.bin1451ce33fbaf974e37cd71ae3f2ab7a7326816e8b40b1c5277e95682df5f5bf8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9530 | 5104 bytes |
font_01_sfnt_off0000a67f.bin98907dc8a35dbde263a485d8f9b47566468d97c755e957fb72f80caf3767aa32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA67F | 10400 bytes |
font_02_sfnt_off0000ca5f.bine296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA5F | 16164 bytes |
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