Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e65b39fb8ff838…

MALICIOUS

PDF

40.6 KB Created: 2020-09-01 00:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7034494883b2dbf7aa7fc8d3e3a19078 SHA-1: a5ba6f7c3ae0b44c302d2d69c53fa262a4376ff2 SHA-256: 88e65b39fb8ff838ef827c07bdc400a5104a1cc7b8cc25a95a2e0a95e419a930
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm. The embedded URL and the document body text both point to a lure related to a 'Texas state driver's license manual'. The primary malicious IOC is the redirector URL, which is likely used to lead the user to a malicious site.

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/wix?keyword=texas+state+driver%2527+s+license+manual
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/statistical_treatment_of_data_formula.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/monisat.pdf
    • https://cdn.shopify.com/s/files/1/0447/0331/8170/files/monthly_financial_report_template_powerpoint_presentation.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/66333758336.pdf
    • https://static.usrfiles.com/ugd/a4d998_82163fa5f3c24941ae35614c0c471d87.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f39526450b84a16907df117671e9271.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf3e10c080e9492e8cd5ef00654012a3.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_26f368f3aaa946d482e788873089e1a9.pdf
    • https://static.usrfiles.com/ugd/bf650e_9d30e8f401d04233a1c7451fa4ad5a3d.pdf
    • https://cdn.shopify.com/s/files/1/0431/3369/8209/files/toguv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9206/files/fasinedafev.pdf
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/32313159917.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/70027649688.pdf
    • https://cdn.shopify.com/s/files/1/0437/2581/5959/files/91917698519.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_off0000609a.bin
864bdd050ed69cf180b711bb2d01372e29c02e4caf7550f3a4a85a45cb9d727b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 5196 bytes
font_01_sfnt_off0000723f.bin
3f078e5632739c8a76f679a2fdded58fc9fcc3185b1ec2c293e8c7f866600f2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x723F 10356 bytes

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