Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf71911091b2216d…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 19:40:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64a0879374270f8ef6811a8c6604719a SHA-1: 070ce65c42fe570d788793da30ab1adef0dbcee4 SHA-256: bf71911091b2216d3310ee3dc97feb2dd16c2c5c508bd6a2e375e203dc710c04
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link disguised as a free DWG to PDF converter download. This link, 'https://ttraff.ru/wix?keyword=dwg+to+pdf+converter+free+download+c', redirects to malicious infrastructure. The document also contains a large number of embedded links to Shopify, likely part of a link farm to improve search engine ranking for the malicious 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.ru/wix?keyword=dwg+to+pdf+converter+free+download+c
    • https://cdn.shopify.com/s/files/1/0437/2594/7029/files/77183659416.pdf
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/50894347252.pdf
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/kuzuxavebitaba.pdf
    • https://cdn.shopify.com/s/files/1/0428/5906/9599/files/messages_for_web_android_not_showing.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/34703382137.pdf
    • https://cdn.shopify.com/s/files/1/0437/2856/8471/files/business_plan_sensitivity_analysis_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/8204/5853/files/chronology_of_events_in_indian_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/bijat.pdf
    • https://cdn.shopify.com/s/files/1/0464/7400/2584/files/comedians_in_cars_getting_coffee_ale.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/lunapamorusume.pdf
    • https://cdn.shopify.com/s/files/1/0436/4104/5145/files/zuleboliguwipemazebaxozi.pdf
    • https://static.usrfiles.com/ugd/d54300_7f7d01ecd8d9414eaf1481a6b67c9763.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c92dd1d815e434e89c35f4a19456138.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_off00006395.bin
3d74f943b913c29b1edf1b72fea2c99d28a6293cbbe56fd268b33161aa05a87f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 5296 bytes
font_01_sfnt_off000075c4.bin
44188c43744e26c05c68bfc5d1dca21e9595ec16a9942a3de5002c5fa75a79be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C4 10468 bytes

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