Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5b304b35ff46858…

MALICIOUS

PDF

33.8 KB Created: 2020-08-19 11:47:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f3ecece11cfe87fa9c0502d0106f1b6 SHA-1: 4e8e6c703669c24402d273f3653186657cf4ed9b SHA-256: f5b304b35ff4685886cae10ba896350a404422b2ddf4c38a09be1feb54911ef5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a lure suggesting the user needs to install a browser extension or update to view content. It embeds numerous links, including one to a known malicious redirector at 'https://ttraff.cc/pify?keyword=chalte+chalte+old+song++mr+jatt'. The presence of a link farm and the social engineering lure indicate a phishing or malware distribution attempt. No scripts were extracted, limiting the ability to determine the exact payload delivery mechanism beyond the initial redirect.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/pify?keyword=chalte+chalte+old+song++mr+jatt
    • http://xefeberiv.zainebshaban.com/uploads/1/3/2/7/132740541/c60635b.pdf
    • http://bonagoto.delhipsunderrajan.com/uploads/1/3/1/8/131871871/f3001cbbfc9ecba.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/60890443173.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4014/files/vawatuwisefasejupoji.pdf
    • https://cdn.shopify.com/s/files/1/0440/5651/0616/files/vakipodomamituladafakara.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/bowetozijibo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mokotutirajozejimus.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/organizational_chart_template_for_powerpoint_2010.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/92323653548.pdf
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/devimoneboweredodebejoj.pdf
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/binuxewevas.pdf
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/watch_descendants_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/82181647517.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_off00004604.bin
81acffc2ec9a6e3ac4ee98bd13a91a7510c6c5b0208b40045d156ccd6fd02d03
pdf-font-stream PDF embedded font (sfnt) at offset 0x4604 5332 bytes
font_01_sfnt_off000057f1.bin
d4bc00ec012961faf602aa72dbe67fce9ad35027c0ae02c84a3937f98aaad52e
pdf-font-stream PDF embedded font (sfnt) at offset 0x57F1 10164 bytes