Malicious PDF — malware analysis report

Static analysis result for SHA-256 53338df411d744bb…

MALICIOUS

PDF

43.7 KB Created: 2020-08-11 07:31:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8379f444d950d473049c8074bcec048d SHA-1: 86e243fb7e0e3c95b607a46e76b4bb09ee608a05 SHA-256: 53338df411d744bb18d8b9f12bf48bb62477004a9620fb0e3480010f6e1ec588
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with many links pointing to benign Shopify-hosted PDFs, likely to obscure the primary malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK firing indicates that the URL https://ttraff.ru/pify?keyword=awakenings+book+pdf is part of a known malicious redirector infrastructure. The document body text and embedded links suggest a lure related to 'Awakenings book pdf', aiming to trick users into visiting the 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.ru/pify?keyword=awakenings+book+pdf
    • http://files.jmaxey.net/uploads/1/3/1/4/131406811/11deb7d10fa905.pdf
    • http://files.crosscountryfarm.net/uploads/1/3/0/9/130969922/teremotite-rofad-wumazujowojenem.pdf
    • http://bosagano.lifebyyoga.com/uploads/1/3/0/7/130776487/sujojakawositek.pdf
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/juxiwubid.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6721/files/resotubitagug.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/29654382573.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/vitamin_deficiency_diseases_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/2116/3941/files/gist_say_n_on_spotify.pdf
    • https://cdn.shopify.com/s/files/1/0428/4776/4636/files/rotork_pneumatic_actuator_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/jerog.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/9500007424.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/bepujofukon.pdf
    • https://cdn.shopify.com/s/files/1/0434/9414/6200/files/nagagudurerad.pdf
    • https://cdn.shopify.com/s/files/1/0439/9503/7854/files/arguments_for_social_responsibility.pdf
    • https://cdn.shopify.com/s/files/1/0438/4446/8901/files/3569413814.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_off00006d98.bin
fbfa5b83042a9177bbfca215bd3254acc425a58adc2071246f4810b100b0d585		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D98 5364 bytes
font_01_sfnt_off00007ff9.bin
eb79b97e38e66549c7e97327ec2fce357468b0a681377113f6aa1b1449336f47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF9 10088 bytes

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