Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7de6dd9fa66e00…

MALICIOUS

PDF

67.4 KB Created: 2020-08-29 18:32:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8372ef4f022e9dfb64c66421c24d04e6 SHA-1: 078b89feccabee11fc606934c35bd2476eb77c29 SHA-256: 8b7de6dd9fa66e0010060b123d1d69d8c046987fbbcba1c1f922d6da09027614
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious infrastructure. The embedded URL 'https://ttraff.club/wix?keyword=starcraft+remastered+free+download' is the target of this malicious redirector. The document body also contains this URL, suggesting a lure for users to download 'Starcraft remastered'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, likely for SEO manipulation to increase visibility of the malicious content.

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.club/wix?keyword=starcraft+remastered+free+download
    • https://static.usrfiles.com/ugd/eb4c03_bbd42010d8094903a43378125c54315f.pdf
    • https://static.usrfiles.com/ugd/b8c837_f00786febb774dfcb39f79a1bc40f0bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_fded61b4a0f74705b95d29c1c5064f73.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab6f624208d14055b47fa3dfeb5fb1d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_f21874f4e02c488e9fd7f7abb3329ddd.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c2822a9f28f4b95b2d64dc3fd33af63.pdf
    • https://static.usrfiles.com/ugd/b13fd1_ec8e1271a70c453e9637d211a52e9c28.pdf
    • https://cdn.shopify.com/s/files/1/0428/8335/0687/files/worthy_is_the_lamb_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0429/3702/4679/files/97865468663.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/29116735089.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/9014283118.pdf
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/r_alagappan_manual_of_practical_medicine.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/67339097765.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/85501705571.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_off0000b59c.bin
24161be51ba9075c7cfcc5536e43e9931b20177353ec0ae101b204b4aaa9d21c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB59C 5360 bytes
font_01_sfnt_off0000c7c5.bin
91aeb161b4f0cd0967fe989d8f756cf71be4ba0272fdc7eca45970737edd4484		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C5 22660 bytes

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