Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a5cc82fa264b7e…

MALICIOUS

PDF

39.7 KB Created: 2020-08-31 19:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b68af1113524883b09ef66226589084a SHA-1: 8caad2fa1e268702abc52598761295b4f1f88e48 SHA-256: d4a5cc82fa264b7e34f97442bef3157b8fafe81f4918c06f9212b88d0ec5eea9
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented to the user in a context suggesting a search for technology-related PowerPoint templates, likely as a lure. The document also contains a large number of embedded links, many pointing to Shopify, which is flagged as a link farm. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=powerpoint+templates+related+to+technology
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/biology_question_paper_for_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/how_to_start_a_bakery_business_in_nigeria.pdf
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/gaxit.pdf
    • https://static.usrfiles.com/ugd/9b33c5_b74ff12dbd3746e686affca5dd215946.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6a1dd58cfee42ee9a569df62f8afcd9.pdf
    • https://static.usrfiles.com/ugd/b8c837_d274c9f52c3740d0b0c48013583d06c0.pdf
    • https://static.usrfiles.com/ugd/12f4eb_8d94990e74e24b5e8ca83da492887d6d.pdf
    • https://static.usrfiles.com/ugd/4dd980_7519c513801349fdbc4c3c671f8ace02.pdf
    • https://cdn.shopify.com/s/files/1/0437/6880/7578/files/easyanticheat_x64._dll_far_cry_5.pdf
    • https://cdn.shopify.com/s/files/1/0433/7264/2460/files/67157401339.pdf
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/55703936834.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_off00005d56.bin
75a1a4df9fddae89d688629b4c6701855e5469b34488e33263b37edd0e5b9a6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D56 5684 bytes
font_01_sfnt_off00007091.bin
02fc18d66d2f187b9ef1bb3894b613c2c6ff7318da54b0b2d6c4fdfd23b0d320		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7091 9796 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.