Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d3d2dd4d14b5403…

MALICIOUS

PDF

34.3 KB Created: 2020-08-30 10:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e57908e919d6766808e3d83d9ca5dd6 SHA-1: 16dcacc3ca1bc843917d232cf72f28b837b66452 SHA-256: 2d3d2dd4d14b54032687b767286df44dc0119f8421aa07741d4832846ed22311
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell 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 prominent link, 'https://ttraff.cc/wix?keyword=word+puzzles+for+adults', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to trick the user into clicking it. The file is generated by wkhtmltopdf, indicating it's likely a crafted document rather than a legitimate one.

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=word+puzzles+for+adults
    • https://cdn.shopify.com/s/files/1/0464/7560/8214/files/tosunowisevux.pdf
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/wezulowowekudufiwisuguwek.pdf
    • https://cdn.shopify.com/s/files/1/0447/9343/0177/files/nationwide_isa_transfer_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/mujolenusedon.pdf
    • https://cdn.shopify.com/s/files/1/0449/5068/3816/files/sonar_mac_prototype.pdf
    • https://static.usrfiles.com/ugd/b8c837_221e863d8c2e4f82b484c1aacc21ca16.pdf
    • https://static.usrfiles.com/ugd/b0b521_aefee29585754ddba96a2000d108cf63.pdf
    • https://static.usrfiles.com/ugd/ecec20_27c38d74a73348eeb3fa8ae958772368.pdf
    • https://static.usrfiles.com/ugd/b8c837_6366e65a4a3b459eb9fa0198f48752ea.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/41883310142.pdf
    • https://cdn.shopify.com/s/files/1/0436/0231/3373/files/74768807275.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1750/files/jobowufafes.pdf
    • https://static.usrfiles.com/ugd/739437_edc752c7259e429597aa16b9f21ec946.pdf
    • https://static.usrfiles.com/ugd/b47706_6f2ec6fc74d8401aa4f1f7e186e15e55.pdf
    • https://static.usrfiles.com/ugd/4b68be_9301329e71b4467889f20ffca1d86c29.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_off000047a3.bin
31ce5dd61dec6ab7cc470fc8d9aee1708c57f1fc9a7153d74c2a0170a722d2d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47A3 5100 bytes
font_01_sfnt_off00005921.bin
ec92e98d610f01f4c862c49e7e8d675e236b4ed6a39e5b98ce1a492321f30832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5921 10372 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.