Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89e8b7a5d4b6611…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 05:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82ee3a18562a925c762773269ad8bb08 SHA-1: 8ce07ca1c63409be9d0d3bf2dba091a072e86a98 SHA-256: d89e8b7a5d4b66112bc84455719f44784d3421cee8118e4d1d312db644db2b27
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One prominent URL, 'https://ttraff.com/pify?keyword=venom+easy+balance+lipo+charger+manual', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, indicating the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted, limiting the analysis of further stages.

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=venom+easy+balance+lipo+charger+manual
    • http://files.byrdsworld.com/uploads/1/3/0/7/130775084/gimixupatusopupedi.pdf
    • http://files.missouriwxco.com/uploads/1/3/1/4/131453990/2abbbd2e20.pdf
    • http://wufesoxog.greenhousewivesbathco.com/uploads/1/3/1/4/131410399/vawege.pdf
    • https://cdn.shopify.com/s/files/1/0432/3812/9823/files/lesupogekozasonosi.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/68922861834.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/43725978181.pdf
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/kaleshwaram_project_images.pdf
    • https://cdn.shopify.com/s/files/1/0432/7954/8580/files/4102143038.pdf
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/movivujigumokoxubase.pdf
    • https://cdn.shopify.com/s/files/1/0432/1961/5901/files/definition_of_visual_impairment.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/zagagovitisiwe.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/greeting_in_japanese_language.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/96007493333.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/loxed.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_off00005516.bin
d39c333f52192f59cd0b742ed31f06f4d9a509c5401044b025420d01fb46c7bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5516 5552 bytes
font_01_sfnt_off000067d4.bin
1b64129393212e6fdfaff06a8ac5a5f8441cea9b07f089834be0724bf1355a5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67D4 14020 bytes

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