Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfea7c4e35e8a27d…

MALICIOUS

PDF

37.6 KB Created: 2020-08-24 05:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af7384f553d45a7abe95f305a0c8b0ff SHA-1: 8fe27371b7b109979de7773ba9ffc68dfeaca4f5 SHA-256: bfea7c4e35e8a27d8112096c292a91bc4e1bb24d75cba32c009a6a3d4ec137d6
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=sign+pdf+document+electronically+free'. This URL is presented within the document body, alongside a large number of other links, many hosted on Shopify, suggesting a link farm designed for SEO manipulation to lure victims. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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.cc/pify?keyword=sign+pdf+document+electronically+free
    • http://labufu.lowersavannahriveralliance.org/uploads/1/3/0/7/130775727/fd299913d130b.pdf
    • https://cdn.shopify.com/s/files/1/0430/6731/0231/files/zazabifoxuvega.pdf
    • https://cdn.shopify.com/s/files/1/0431/9189/4176/files/lisafezalamovikiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8328/4136/files/zukegipip.pdf
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/goo._gl_url_shortener.pdf
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/jatubuzajuxubozelu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9966/7112/files/essentials_of_biological_anthropology_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/burning_glass_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/4751/6325/files/sasexasetuponunewezi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/visio_2016_architecture_diagram_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/75530205843.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0245/files/merikolojumawobuzuveg.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_off000054be.bin
9f75b2fb7420a9a2e9dd03ba9b92f2cc7ddd3631ccf52364c9054ea35cc48cbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BE 5504 bytes
font_01_sfnt_off00006760.bin
1dd4f6425f9d29d82e941112199577e894e0ef325313a8a12a91665a3ddcfb92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6760 10172 bytes

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