Malicious PDF — malware analysis report

Static analysis result for SHA-256 293b57529116e312…

MALICIOUS

PDF

41.0 KB Created: 2020-08-31 09:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dfb93cf4d5745007a3e40410b0ef2fe SHA-1: f96852d6b4132c53a377cc6b5482609d25b23726 SHA-256: 293b57529116e312aef0c9defff437d029ee6b0ba88ed7e342902f6f729b7ded
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, appears to contain the URL that triggers the malicious redirect. This suggests a phishing or social engineering attack aimed at directing users to malicious infrastructure.

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=dirt+devil+featherlite+carpet+shampooer+manual
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/wibirawu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6181/9045/files/45155593366.pdf
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/87625140389.pdf
    • https://static.usrfiles.com/ugd/b8c837_2543ab1ed7d14a999ebfdb3c54418f23.pdf
    • https://static.usrfiles.com/ugd/b8c837_93df851ba33a428ba21dde46959a3e73.pdf
    • https://static.usrfiles.com/ugd/217d68_a81f6dadfd33418aa4ae0f1028988c49.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/75830594345.pdf
    • https://cdn.shopify.com/s/files/1/0439/9670/9022/files/38449389795.pdf
    • https://cdn.shopify.com/s/files/1/0432/8475/8696/files/lerikafona.pdf
    • https://cdn.shopify.com/s/files/1/0435/6961/0907/files/used_formal_dress_stores_near_me.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/bakomiderotef.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/40865975968.pdf
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/531066794.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujipipokumamidepuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6718/7108/files/jugideleludofugetiripi.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_off0000608e.bin
8810894eb1cbd9d4bd422b78b41cfeeec5ba0397c9a1acecc62e10ed06f1cf2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 5452 bytes
font_01_sfnt_off000072f7.bin
5e9996217f9c595ad090621bdfb64a7ec1fdc6ea6a06f8d50f649ef0511912df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F7 10516 bytes

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