PDF malware analysis — malicious · 258da740181ffa87

MALICIOUS

PDF

38.8 KB Created: 2020-09-01 05:43:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 28b9a80438717ae953e5f11a1a8c7d2d SHA-1: 74712f5ed410fc0ec4f42d3672229b91702b9b0b SHA-256: 258da740181ffa871760e5654b8d1534c42265ea90feb6f04870709fc1d14501

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF documents, a technique often used for SEO poisoning or to obscure malicious redirects. One of these links, 'https://ttraff.cc/wix?keyword=badmash+company+song', is identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF 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_FARM

Small 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_INCREMENTAL

The 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_URL

One 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=badmash+company+song
- https://static.usrfiles.com/ugd/3b7182_d1f7dad8fbae4feb8c82300fedcc87b1.pdf
- https://static.usrfiles.com/ugd/b98abb_6e9fef61210040f59002d96b1203a980.pdf
- https://static.usrfiles.com/ugd/1f6d71_f827cf8daca047d1a7d9f34c6c54c780.pdf
- https://cdn.shopify.com/s/files/1/0427/7141/5196/files/33909748245.pdf
- https://static.usrfiles.com/ugd/0d2908_2ff18ea4b1594cbb933afe844f17c304.pdf
- https://static.usrfiles.com/ugd/07e02c_7aca991e9d6b4e1e907b9e037a736a17.pdf
- https://static.usrfiles.com/ugd/9ff9b8_a0bbe595f6f24d16975891195d81de51.pdf
- https://static.usrfiles.com/ugd/2f7815_a9d7a12c511f4662a2b982a312d8f90f.pdf
- https://static.usrfiles.com/ugd/b8c837_473943440a764100b3342c0fbc9bb6af.pdf
- https://static.usrfiles.com/ugd/b8c837_2ae2582386cf4e27979301d401409196.pdf
- https://static.usrfiles.com/ugd/96768c_3ee4c99bd20a463483b6d298292b7ac2.pdf
- https://static.usrfiles.com/ugd/b8c837_c92483f654da4abebf15557d295bfa6a.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_off00004d76.bin` `84add59a2d23740759610f0b72e7ad7595c67b28d05614b4fcf57ffc123d4a2f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D76	5508 bytes
`font_01_sfnt_off0000601e.bin` `3d12434e1ebce6853f569586274dfab7b221ded872c748fe201ffa6aa0bc4b5a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x601E	15292 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.