Malicious PDF — malware analysis report

Static analysis result for SHA-256 b27fdccffa4e171e…

MALICIOUS

PDF

32.4 KB Created: 2020-08-30 06:17:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73be8e75904d0fef35d21d545b8d5c6e SHA-1: ca3a251f1ce6adc59e54dc1ce0dab16dfb1cf001 SHA-256: b27fdccffa4e171efa323c98e74f128ff96fe681223a7dd862ffa3acd54697fb
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 a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.com/wix?keyword=my+hope+will+never+die, is flagged as a known malicious redirector. This suggests the document is designed to direct users to malicious infrastructure, likely for phishing or malware distribution.

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=my+hope+will+never+die
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/34525220156.pdf
    • https://cdn.shopify.com/s/files/1/0431/3104/4007/files/30733726095.pdf
    • https://cdn.shopify.com/s/files/1/0432/1034/2564/files/74140604498.pdf
    • https://cdn.shopify.com/s/files/1/0439/0964/4456/files/business_studies_class_12_project_on_principles_of_management.pdf
    • https://cdn.shopify.com/s/files/1/0444/2986/9222/files/lupuxotalimor.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/1896029429.pdf
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/20013225022.pdf
    • https://static.usrfiles.com/ugd/299074_c534a8e72207424d8e3959b988dadc3a.pdf
    • https://static.usrfiles.com/ugd/a48928_b4cf6f1be31c4b7a98084bb65ff90df7.pdf
    • https://static.usrfiles.com/ugd/469aea_0afdde7c18294f0cba0fd7fbb6ba768e.pdf
    • https://static.usrfiles.com/ugd/b8c837_ea766fa082de4f4b8f9cab86dc92a606.pdf
    • https://static.usrfiles.com/ugd/b0b521_9b7f5fe36cf040368ee6105efb430f54.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_off00004355.bin
8a3db81141a1c99c206ef0a738143907a17153fc7533f6a28214c9263fcfef9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4355 4920 bytes
font_01_sfnt_off00005428.bin
429682f4d9cc88d70e8c91b7fdf06128c4576b336ba4a985fabf100630c93ba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5428 9748 bytes

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