Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60e1e96a5b2dac8…

MALICIOUS

PDF

46.0 KB Created: 2020-08-06 07:14:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 423b9c3010049ae640655f5bc0a28a19 SHA-1: a5ff8c3476011e8c465957921ede0bf58fa8ce64 SHA-256: d60e1e96a5b2dac8139133c87a1dc5f11ab860a5a296c27a314b63460822b06c
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at ttraff.com. Another critical heuristic identified a large external PDF link farm, suggesting a tactic to distribute malicious content or engage in SEO manipulation. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=back+titration+calculations+pdf', reinforcing the lure to a potentially malicious site.

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.com/pify?keyword=back+titration+calculations+pdf
    • http://files.steelcamel.com/uploads/1/3/1/3/131379740/zizekop.pdf
    • http://files.chadhanson.org/uploads/1/3/2/7/132710627/vuliwaxubaluraki.pdf
    • http://files.kristienienabercounseling.com/uploads/1/3/1/4/131407089/6084785.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5288/files/tyga_40_mill_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/37704316680.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/98633548857.pdf
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/27733558297.pdf
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/79599042733.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/fugabitavixovogi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/missing_xcrun_at.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudusojixidotivage.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/24256559961.pdf
    • https://cdn.shopify.com/s/files/1/0435/3294/3519/files/9250136293.pdf
    • https://cdn.shopify.com/s/files/1/0431/8124/4573/files/tuduxaluget.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_off00007332.bin
e5cf1806dc565ce1fa96e6a423e5e21c842276d7b15c727514bf882386c4e532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7332 5260 bytes
font_01_sfnt_off00008526.bin
f7bf3d2e85a1d10ee1323d5aa9f7bb8f1b5db941d447539d494a83ec349862af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8526 11120 bytes

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