Malicious PDF — malware analysis report

Static analysis result for SHA-256 2740df41062e27df…

MALICIOUS

PDF

48.8 KB Created: 2020-08-15 04:17:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 765a1bee3ad270625cca5ea2ca213b3e SHA-1: 023a27a9f9911b703db92156643eb8c47a605f97 SHA-256: 2740df41062e27dff8bed85c22ce41b0c68ab03b60c8c403e971305cf1a9d9d7
120 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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=bounty+killer+2013+movie+free', is likely used to redirect the user to a malicious site. The document also contains a PDF link farm heuristic, indicating a large number of embedded links, many pointing to shopify.com domains, but the primary malicious indicator is the ttraff.cc redirector.

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/pify?keyword=bounty+killer+2013+movie+free
    • http://rifeduri.highschoolcareercounsellor.ca/uploads/1/3/2/6/132681556/gutakipufipu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/28738384532.pdf
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/58352438299.pdf
    • https://cdn.shopify.com/s/files/1/0432/9163/9974/files/gajogikiwebef.pdf
    • https://cdn.shopify.com/s/files/1/0433/1002/2814/files/adobe_printer_free_download_for_windows_7_32_bit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gevuruliwineda.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/vocabulary_in_use_american_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/5648969571.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/zexaxusibumireke.pdf
    • https://cdn.shopify.com/s/files/1/0438/3725/9938/files/4376180535.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_off0000818f.bin
78756bf31fc5b0391399428065fed9f5cef9e2f29c81e91e29327628596e6403		 pdf-font-stream PDF embedded font (sfnt) at offset 0x818F 5288 bytes
font_01_sfnt_off0000939c.bin
c3eff7affcc365630ef2f441ac5eea7ca649c2fd9fe66db70ea37203085b39cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x939C 10352 bytes

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