Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0e9591356e7281…

MALICIOUS

PDF

40.5 KB Created: 2020-08-30 15:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ad2db3192a224586cf7d1a70cdd792f SHA-1: 5c3ba38ba5e863ae81bb58759e04642a3f744f6c SHA-256: ea0e9591356e7281dd2ac578ed051f993abc42dc40995ad9e1f85c36dc297bc9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates a mass of external PDF links, with the primary malicious URL being ttraff.ru. The document body, though heavily obfuscated, contains the same URL and a reference to a benign-looking PDF, suggesting a deceptive lure.

Heuristics 3

  • 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.
  • 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.ru/wix?keyword=metal+detector+terraria
    • https://static.usrfiles.com/ugd/d5415a_9f945af4a9c34fbeb6941bfcfc97e77a.pdf
    • https://static.usrfiles.com/ugd/b8c837_41934b2beee5442ca25610b90fd6c930.pdf
    • https://static.usrfiles.com/ugd/b8c837_c80be75911d54b73a1e4a307ccab9268.pdf
    • https://static.usrfiles.com/ugd/b8c837_259b529153ee4d06878348b75a9551b3.pdf
    • https://static.usrfiles.com/ugd/f0e51d_da629875b9f94d0ba4f277764db87dac.pdf
    • https://static.usrfiles.com/ugd/bf650e_877b367b138b488e81e322c9d19a2878.pdf
    • https://static.usrfiles.com/ugd/b8c837_4bd775346769411e903d8fe715c5cacc.pdf
    • https://static.usrfiles.com/ugd/b8c837_570843dfa00848aa8f001642ff081495.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_9850c9fb45ef4333b72fa3463b2ba1e6.pdf
    • https://cdn.shopify.com/s/files/1/0437/8135/7725/files/cognitive_behavioral_therapy_great_courses.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/likowasedavufigopabub.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8402/files/46429551871.pdf
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/zatasusadejege.pdf
    • https://cdn.shopify.com/s/files/1/0431/1144/8727/files/font_point_size_chart.pdf
    • https://cdn.shopify.com/s/files/1/0448/2344/5666/files/11977115948.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.

FilenameKindSourceSize
font_00_sfnt_off00006313.bin
27b45ebeaf318df9f655bf2f0d52a0cfa6d0273e8793fc24d67e510c9c24eef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6313 4760 bytes
font_01_sfnt_off0000734d.bin
071356f4e455fa67ae1e3d272ab0ef38e2012585d445b0c61357375320bb041f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x734D 10008 bytes

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