MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a mass external PDF link farm, with many links pointing to static.usrfiles.com. The primary malicious URL identified is https://ttraff.ru/wix?keyword=the+little+book+of+common+sense+investing+summary, which is likely used to direct users to a malicious site. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=the+little+book+of+common+sense+investing+summary
- https://static.usrfiles.com/ugd/455f95_bdae5f05d2564a09bb09f445fd401477.pdf
- https://static.usrfiles.com/ugd/b8c837_ddf5f9b00c734c4c8da90ac4924426b2.pdf
- https://static.usrfiles.com/ugd/b8c837_e7a8f57579a54e8bb5522ce5f8d24548.pdf
- https://static.usrfiles.com/ugd/ae15ca_6e4b2c61bb6844d082464c31fecfe47a.pdf
- https://static.usrfiles.com/ugd/f0f215_794dc8a83c6f4825b943dcacc9b4f94b.pdf
- https://static.usrfiles.com/ugd/289c5e_b1dd0cc8f1b74d90bec057c5286def93.pdf
- https://static.usrfiles.com/ugd/b8c837_861183074ec84b019bfb727e8f6b6c40.pdf
- https://static.usrfiles.com/ugd/3ceeb9_31317c19c7bd4bd390bd74c23a3e47e6.pdf
- https://cdn.shopify.com/s/files/1/0428/2204/1767/files/37696635904.pdf
- https://cdn.shopify.com/s/files/1/0428/5172/9574/files/rujozosijamoseti.pdf
- https://static.usrfiles.com/ugd/913720_85a483ab283e4d1d8f66ccab8191df98.pdf
- https://static.usrfiles.com/ugd/b8c837_d274c9f52c3740d0b0c48013583d06c0.pdf
- https://static.usrfiles.com/ugd/f65518_ddf0b87a82d14868aba29cc6ff2fb8ff.pdf
- https://static.usrfiles.com/ugd/e1d12c_cec7479a5c8945138402c6544397194d.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_off00006b44.bin2b5fb4156143f72d237d2fe61517002b74d9e498cf9ff66a63141b1762d5f3de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B44 | 5608 bytes |
font_01_sfnt_off00007e48.bincb2985f31a12c8bafab7921504e78c1e86490093c670c328f6ddae55f71e8b93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E48 | 10380 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.