Malicious PDF — malware analysis report

Static analysis result for SHA-256 50ab4370b1914c0c…

MALICIOUS

PDF

37.3 KB Created: 2020-08-30 09:03:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9548b270bcab44227a20bc4733844f86 SHA-1: 6636b4096fbbd9fb5ea21409227f530f7ba8d212 SHA-256: 50ab4370b1914c0c3c1fb51ddf3fb4bd91f565b49038e5d5fe854f4695a6e8eb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of 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, contains text related to 'Craftsman garage door opener parts' and the malicious URL, suggesting a lure to disguise the malicious intent. The primary malicious URL is a redirector that likely leads to further 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.com/wix?keyword=craftsman+garage+door+opener+parts+41a5021-3e
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/keborudufosovakasazilul.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/alagappa_university_dde_prospectus_2019.pdf
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/westminster_advertisement_design_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/8436/5476/files/joxikejex.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/tufelonuvowiga.pdf
    • https://cdn.shopify.com/s/files/1/0440/4586/1029/files/spider_man_unlimited_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3366/4411/files/98435465408.pdf
    • https://static.usrfiles.com/ugd/3f0e57_d78ee4daeec74e11a80e69748e93cd5f.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef9c58fd780d47ad954c7516dc40384f.pdf
    • https://static.usrfiles.com/ugd/6f7357_5ad4ca102a5640b4bf58ac32d92e0bf0.pdf
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/sources_of_bias_in_research.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/abatement_notice_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/analecta_biblica.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/can_you_report_reckless_driving_in_california.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_off0000508d.bin
8ed369e44735def04642b84b16bb8f28a39bdc72fa52c4123f945a08e85a3d9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x508D 5968 bytes
font_01_sfnt_off000064dd.bin
c5607d1cf2e95f609818b33aa493e7077aaa9e6f5ca8aa205b7e69c77353e5b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DD 10628 bytes

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