Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9c73dfbc8793c7…

MALICIOUS

PDF

35.8 KB Created: 2020-08-30 03:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc3486f60fce746c054ff652c346f4a1 SHA-1: 572ceeb5be5b183c71142024457b5ca7eec19202 SHA-256: fc9c73dfbc8793c7363b38fd49eb1c51d1868a242b8fd2df478040defe7ce5f8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as an instruction manual. The ML classifier also flagged this PDF with high confidence. The document body contains obfuscated text and the malicious URL, suggesting a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=266+clamp+meter+instruction+manual
    • https://static.usrfiles.com/ugd/b8c837_21b9ebe27ef7402f87e0d0f199e9f391.pdf
    • https://static.usrfiles.com/ugd/0aab01_073676bf367e4ac6a235142f5c6abfa3.pdf
    • https://static.usrfiles.com/ugd/6924eb_9b2313f3580c48309cfb4ed8dc0378e8.pdf
    • https://cdn.shopify.com/s/files/1/0439/2416/0667/files/migorabojukunipuwotak.pdf
    • https://cdn.shopify.com/s/files/1/0435/0243/6512/files/wunemapafevolulatopelaj.pdf
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/hadoop_hive_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/maplestory_reboot_cubing_guide_2018.pdf
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/29513245850.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6c97b325978480dbf153dd2a6de8c26.pdf
    • https://static.usrfiles.com/ugd/d2751c_89187567a46f4de29287a6d34be65b03.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/bayonetta_alfheim_portal_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/sujok_acupuncture_points_chart.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6463/files/34498206132.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_off00004ede.bin
cbe049c9cbf337ab8f147d53e260e0d5bbdac28bf4d6414e641c77fb10dc0e22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EDE 5272 bytes
font_01_sfnt_off000060a0.bin
6cb3ade586af7dc3fc02e87c43c191c0950fdea3a6167f89050dc8b31048107c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A0 9972 bytes

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