Malicious PDF — malware analysis report

Static analysis result for SHA-256 95519b9e1878c458…

MALICIOUS

PDF

33.6 KB Created: 2020-08-04 17:30:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 961aba603385c4af60a23ee6b62e8d8f SHA-1: d5d547919a775c7067c055959f65f154e54d850d SHA-256: 95519b9e1878c4581a7dcd322e5e02456252e6b33969b0fd792b56552509b102
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bright+futures+pdf+2+year'. This URL is likely used to redirect the user to a malicious site. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to obscure the final malicious destination or to appear legitimate. The document body text, though heavily corrupted, contains the phrase 'Bright futures pdf 2 year' and the malicious URL, reinforcing the lure.

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=bright+futures+pdf+2+year
    • http://files.pgsarts.co.uk/uploads/1/3/1/4/131436991/2bdb3f35e81.pdf
    • http://files.alarmsmeathcctvmeath.com/uploads/1/3/0/7/130775806/2695718.pdf
    • http://files.mercerscaffolding.com/uploads/1/3/2/7/132740693/2823265.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.pdf
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/brimonidine_ophthalmic_davis.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/14228443714.pdf
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/52476172336.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/nomipu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/37369765827.pdf
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/2504614726.pdf
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/93476319145.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/35086341977.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/45818921965.pdf
    • https://cdn.shopify.com/s/files/1/0431/2337/6277/files/subavumamurasovozobakifu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/muvasokojujukenusotor.pdf
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/fukiwidonejakigejit.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_off0000483d.bin
872afc8e6e1db61b31049571931fc6d37558bd89c7ad8f7089c22cc586cf1b35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x483D 5556 bytes
font_01_sfnt_off00005b2d.bin
07a0d135beb2034ab0c6b6630489f74392699641dde39aecd34d1757e2ed572a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2D 8952 bytes

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