Malicious PDF — malware analysis report

Static analysis result for SHA-256 53e10903d1b4a8f9…

MALICIOUS

PDF

44.7 KB Created: 2020-08-20 04:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d8afd91f8864678edb9e8ac446d8ca4 SHA-1: 7def627a082b7a8ea04ce3e514ca9a4f3eddb22f SHA-256: 53e10903d1b4a8f97dc7de1c85f645a47ef4f96cf6f4a59c3eb4420591a867da
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as an 'influencer proposal template'. The document also hosts a large number of external PDF links, many pointing to Shopify domains, likely as part of a link farm to improve search engine ranking for malicious content. The primary malicious URL is https://ttraff.com/pify?keyword=influencer+proposal+template.

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=influencer+proposal+template
    • http://lileza.laplayaatthestrand.com/uploads/1/3/2/6/132680981/gumomuraxi.pdf
    • http://files.partners-in-joy.org/uploads/1/3/2/6/132682790/9778445.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73470001672.pdf
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/18656357674.pdf
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/62615114750.pdf
    • https://cdn.shopify.com/s/files/1/0438/3604/7522/files/69288228732.pdf
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/18773168394.pdf
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/change_branch_name.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7927/files/vadunemonenitaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/dialysis_disequilibrium_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0433/5081/8981/files/98512087603.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/
    • https://cdn.shopify.com/s/files/1/0432/7

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006358.bin
6089c767c197495ffa050afc97ebbc8ca333e9718645725ecf2890af9263a094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6358 4932 bytes
font_01_sfnt_off000073f8.bin
82d077d84f33602e51a3055342abe9d5d4e6f2e37360dd227b362ef742b662ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F8 10516 bytes
font_02_sfnt_off000097c4.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97C4 4324 bytes

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