Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f9ba2adead756e5…

MALICIOUS

PDF

106.9 KB Created: 2020-08-21 13:25:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d9c833a71c5566a97daabb492bd3880 SHA-1: c829ddf8baa3a28d8a1d04a584afb59feeed5bc6 SHA-256: 4f9ba2adead756e55ad363ff7cab77ede743ddaa1a3af4d378d961fc77423adc
120 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, many pointing to Shopify domains, which is indicative of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=ada+guidelines+2017+hypertension', is flagged as a malicious redirector. This suggests the document is designed to redirect users to malicious content or phishing sites.

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.cc/pify?keyword=ada+guidelines+2017+hypertension
    • http://files.storymakerlife.com/uploads/1/3/1/1/131164358/245405.pdf
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/change_to_word_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/5108/0087/files/unicode_characters_table.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/nosoziza.pdf
    • https://cdn.shopify.com/s/files/1/0462/4377/4618/files/kigunakixuvobojovimona.pdf
    • https://cdn.shopify.com/s/files/1/0430/9286/9281/files/rowav.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9208/files/padi_enriched_air_diver_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/50092772234.pdf
    • https://cdn.shopify.com/s/files/1/0463/2802/1147/files/math_bingo_worksheets_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/rofadiwov.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vopaxopoguzadexi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4248/7963/files/zadalorikinimupotategu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1163/7401/files/metenumofi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001556b.bin
951c8aae132f49276872a39c42b50c41e7cb4814b2b8b548bfb8d576b9b07c8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1556B 5600 bytes
font_01_sfnt_off0001687e.bin
fc91640b647d6c6beb24b8a0383767fab391ec63cc0b81b92caac6bd814ff96e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1687E 12292 bytes
font_02_sfnt_off00019035.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19035 4324 bytes

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