Malicious PDF — malware analysis report

Static analysis result for SHA-256 f360693bd6d19f3d…

MALICIOUS

PDF

57.1 KB Created: 2020-08-31 16:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86a8f1ea657fb14d49a51c77ef5db8af SHA-1: 6bc3a20ee8cebf1cdf7a058a6fc8bd492f0d26b5 SHA-256: f360693bd6d19f3dc7f57c509d37765a160bd3477cb005629cc6899598cdbcdf
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=bionic+commando+rearmed+2+trophy+guide'. The document body, though heavily obfuscated, contains text related to a 'trophy guide' and the malicious URL, suggesting a social engineering lure. The file also contains a heuristic for a PDF link farm, indicating a broader campaign to distribute malicious links.

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.cc/wix?keyword=bionic+commando+rearmed+2+trophy+guide
    • https://static.usrfiles.com/ugd/b8c837_fb6985de4f654a1cb937a6641e90bf53.pdf
    • https://static.usrfiles.com/ugd/b8c837_1379859d0ae04611b2704b36c748368c.pdf
    • https://static.usrfiles.com/ugd/b8c837_a1d869dbd2f34fbbbc4f0ef829ee6281.pdf
    • https://static.usrfiles.com/ugd/b8c837_7d7af03a04d145f7a49d1f0b9cdc5789.pdf
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/articles_a_an_the_zero_article_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/willpower_roy_f_baumeister.pdf
    • https://cdn.shopify.com/s/files/1/0438/2775/7216/files/77682669337.pdf
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/78689858970.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/83989358643.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1336/files/japumopopaxosaxix.pdf
    • https://cdn.shopify.com/s/files/1/0439/1242/9723/files/sivesivedasevubim.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/rozujubijilugapukuwimaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0970/3062/files/kolakatixum.pdf
    • https://cdn.shopify.com/s/files/1/0428/2171/4076/files/85337648815.pdf
    • https://cdn.shopify.com/s/files/1/0445/6477/5076/files/motorcycle_appraisal_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/8761/6413/files/flowers_name_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/3039/6574/files/bilanzierungsgrundstze_bersicht.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_off0000a0a6.bin
b679dbca124658bc689c551af537aecd09cf09c24211abf52393598f92637803		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A6 5560 bytes
font_01_sfnt_off0000b370.bin
9a8011f20222fdd23ab825b2327cc736e0477a991d6ba50b67ad4d40e7c10b21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB370 10456 bytes

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