Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a285f8f38e5e26f…

MALICIOUS

PDF

52.1 KB Created: 2020-08-30 07:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b91470ce7522e62b50bfc9937752a077 SHA-1: 9040826d48e88a191c38114ee50e2fb8962b2e5f SHA-256: 5a285f8f38e5e26fbc6b40bdd4b4acc8a12541c395a7eacd44a8529293657081
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=nba+2k14+yamalar%25C4%25B1'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The presence of a 'download button' lure further supports the malicious intent. The primary attack pattern involves tricking the user into clicking the malicious link, which then redirects to harmful infrastructure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=nba+2k14+yamalar%25C4%25B1
    • https://static.usrfiles.com/ugd/6908d7_c09e71e1b6d542a19c7fb1a8dec86e33.pdf
    • https://static.usrfiles.com/ugd/0789d5_36cbfe58c1614f0498d183d30c1f1d2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_f76e49bd4db54925b40a48ba9ca7779d.pdf
    • https://cdn.shopify.com/s/files/1/0432/7732/0348/files/34611492897.pdf
    • https://cdn.shopify.com/s/files/1/0448/2249/5389/files/ngo_bylaws_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/42216992984.pdf
    • https://cdn.shopify.com/s/files/1/0439/9353/0526/files/discord_code_markdown.pdf
    • https://cdn.shopify.com/s/files/1/0440/7794/0886/files/hindu_marriage_biodata_format_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/6951/2607/files/3750509169.pdf
    • https://cdn.shopify.com/s/files/1/0439/4260/9051/files/5865093769.pdf
    • https://cdn.shopify.com/s/files/1/0435/9018/9215/files/d_d_monster_guide.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_off00008c89.bin
6730b9313f65695f7fbbf5813a7a72f17d7b6d276e0a33961a98e180207cbf59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C89 5232 bytes
font_01_sfnt_off00009e55.bin
4afd703f26302129ea4d9652fd81392134d20738f43967c3a2e6869a3fd3113b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E55 10568 bytes

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