Malicious PDF — malware analysis report

Static analysis result for SHA-256 c935cd047b24d5e8…

MALICIOUS

PDF

36.6 KB Created: 2020-09-12 18:44:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88f9105b18b072699f6dcba4ea079adf SHA-1: 9fa8fd3b0ec9c2bbc4479e422eddc93e08a36cea SHA-256: c935cd047b24d5e878a939b86524abd729ebcd1a0df780f5bbd4d24dd3bc2216
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating it is a malicious redirector link farm. The primary redirector URL is 'https://ttraff.club/pify?keyword=tommy+emmanuel+book+pdf', which likely leads to a phishing or scam page. While many other links point to benign Shopify domains, the presence of the redirector and the sheer volume of links suggest a coordinated effort to lure users to malicious content.

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.club/pify?keyword=tommy+emmanuel+book+pdf
    • https://cdn.shopify.com/s/files/1/0455/6272/4517/files/ga_automobile_bill_of_sale.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84511803825.pdf
    • https://cdn.shopify.com/s/files/1/0434/5102/3510/files/tupiw.pdf
    • https://cdn.shopify.com/s/files/1/0436/0372/2402/files/tazefumevozodadovuwet.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/48111806412.pdf
    • https://static.usrfiles.com/ugd/225520_a28cb12e7ca947b8ab738f8ab1c148b8.pdf
    • https://static.usrfiles.com/ugd/bf650e_72c8420dce0b4426b4243a535348c9e5.pdf
    • https://cdn.shopify.com/s/files/1/0477/1568/0412/files/phn_mm_unikey_toolkit.pdf
    • https://cdn.shopify.com/s/files/1/0431/9612/1248/files/fidemavulesedizewom.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/8830567771.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/cheniere_energy_partners_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0448/5156/0609/files/foxisixukobosalakev.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_off00005039.bin
8d7376b0056b1d80d80129e3c82755e80c57b72256448352573d090daefb5eed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5039 5168 bytes
font_01_sfnt_off000061c7.bin
6c7cb03fec6c4c9a477420a63095d86af2f614c5cff5efee2d8837ad9c837e55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 10628 bytes

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