Malicious PDF — malware analysis report

Static analysis result for SHA-256 23956020b289dc92…

MALICIOUS

PDF

36.5 KB Created: 2020-08-22 06:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 539d58709a2ac813f79452b1ce51799d SHA-1: f38a7c2a6f6dd8a511072cd5819e8a6631ed04e5 SHA-256: 23956020b289dc92dcfde48d95c2ce921c98359d18ff38fd00228cd2cb793361
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF document contains a mass of external links, with one prominent link pointing to a known malicious redirector. This suggests the document is designed to lure users to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=les+chevaliers+du+ciel+soundtrack. No scripts were extracted from this sample, limiting further analysis of its behavior.

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/pify?keyword=les+chevaliers+du+ciel+soundtrack
    • http://files.dsslearningcommons.ca/uploads/1/3/1/6/131606550/vemepogiramu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/easa_module_08_basic_aerodynamics.pdf
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/tegisugakuwinirexajij.pdf
    • https://cdn.shopify.com/s/files/1/0434/1412/6759/files/fostering_futures_fact_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6123/files/bottleneck_definition.pdf
    • https://cdn.shopify.com/s/files/1/0463/2723/4722/files/audi_r8_wallpaper_for_android_phone.pdf
    • https://cdn.shopify.com/s/files/1/0432/0903/1840/files/calculus_for_scientists_and_engineers_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0449/5376/3999/files/bipazirovawidopiwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/20656539050.pdf
    • https://cdn.shopify.com/s/files/1/0436/3767/0041/files/losojo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/accident_report_number_abu_dhabi.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_off00004fc7.bin
99e323d00957b08f6aba8ef86881d020307a8e6b88a3f029b7fd4f6da0f9bbf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC7 5092 bytes
font_01_sfnt_off0000610d.bin
0ac2a94b9f9adbc2e8746eb542d11ef5ce3ac8de0be76248ad027b82e99f29c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 11496 bytes

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