Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed720daa3011056…

MALICIOUS

PDF

37.0 KB Created: 2020-08-19 12:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 571d77ba351dc36d5f89052bbcab76e7 SHA-1: 1f0fa05984374d7c048608cd1935a6b3c8604180 SHA-256: 2ed720daa30110566238a25a2ffcbf06db267d8919ba1a50fc92ee3e8bfe2667
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is presented in the document body as a 'wedding slideshow template'. This suggests the primary goal is to lure the user to a compromised or malicious site. The file also contains a large number of links to PDFs hosted on Shopify, likely part of an SEO link farm to improve search engine ranking for the malicious redirector.

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/pify?keyword=wedding+slideshow+template+final+cut+pro
    • http://sosutodi.heatherconine.com/uploads/1/3/0/8/130873867/garaguzoji.pdf
    • https://cdn.shopify.com/s/files/1/0444/2878/7879/files/low_back_stretches_spanish.pdf
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/cane_s_menu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/kenotilijok.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/wujuxalurusifuxatovatu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2062/9654/files/antidiabetic_activity.pdf
    • https://cdn.shopify.com/s/files/1/0437/7496/7965/files/cognos_reporting_tool_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/amadeus_reissue_commands.pdf
    • https://cdn.shopify.com/s/files/1/0438/4971/1776/files/soundhound_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/24141463476.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_off0000520b.bin
ba398e446c4f25297a49ce323c99620cf38d3a0040f892a041239abaa9057d4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x520B 5676 bytes
font_01_sfnt_off00006544.bin
652b69759d1398284b2e1025c2a27739481ce17e9ac12bc4877bc71822e4b8b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6544 10016 bytes

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