Malicious PDF — malware analysis report

Static analysis result for SHA-256 373760fd6cbacb2b…

MALICIOUS

PDF

43.1 KB Created: 2020-08-19 04:05:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63002c838e12fb4203524d09b843b850 SHA-1: 5fccbba2d29c2a5db6a64139a522b036ae02e2e5 SHA-256: 373760fd6cbacb2b207f4f2af125f88c104b434f75049d45f4e411690a5937b8
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 for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=application+of+genetic+engineering+pdf, is designed to redirect users. While many other links point to benign Shopify domains, the presence of the malicious redirector indicates a clear intent to lure users to a harmful destination. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact second-stage payload.

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=application+of+genetic+engineering+pdf
    • http://rufuwex.pcwrf.com/uploads/1/3/0/7/130775320/zerarakafuxabaj-xarizivaletixu-bopok.pdf
    • http://zavazi.namkoorb.com/uploads/1/3/0/9/130969744/motukanimug-xajegape-vuwovukibusijiw.pdf
    • https://cdn.shopify.com/s/files/1/0446/7671/0563/files/xejakasebo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1185/8855/files/itsfoss_guide_install_linux_mint.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/poneza.pdf
    • https://cdn.shopify.com/s/files/1/0451/6282/3834/files/creativity_invention_and_innovation.pdf
    • https://cdn.shopify.com/s/files/1/0434/0842/5123/files/fanuganupove.pdf
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/libro_de_automatizacion_industrial_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/7946/7162/files/california_bill_of_sale.pdf
    • https://cdn.shopify.com/s/files/1/0438/5298/8566/files/vehicle_coordinate_system.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_off00006b59.bin
322eaebb78982b00f00578745bf3a9f376dd9e6582a58c8363770f833754a3dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B59 5136 bytes
font_01_sfnt_off00007cd4.bin
7b32e1cf32cc091b0804ee8b73ad608e458c9420589f62b77b23d23aaf9b1a80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD4 10464 bytes

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