Malicious PDF — malware analysis report

Static analysis result for SHA-256 a192a822fc3849a3…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 02:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96090b5ef5a2217913a73c10f5c19574 SHA-1: e0cd43204a1450216e1eed68762ea5ae0d55a171 SHA-256: a192a822fc3849a36307ca3aebb709afa12562b3e4244da7f3467d10fb54535b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=arr%25C3%25AAte+avec+tes+mensonges+pdf'. This indicates the document's primary purpose is to lure the user to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to obscure the malicious redirector or to appear as a legitimate content aggregator. No scripts were extracted from this sample.

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/pify?keyword=arr%25C3%25AAte+avec+tes+mensonges+pdf
    • http://files.pamelapalmadesigns.com/uploads/1/3/1/4/131482954/dca6f52f523f7.pdf
    • http://files.berrybrook.us/uploads/1/3/1/8/131855981/cce75.pdf
    • http://files.midstatesmeat.org/uploads/1/3/1/4/131453432/dexefomemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/fijaramot.pdf
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/gipisotodivefo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/masuzumofakow.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/45820840194.pdf
    • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/vevamumuvexikojudalo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8446/1720/files/61505623956.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/31167698932.pdf
    • https://cdn.shopify.com/s/files/1/0432/3442/7047/files/80142359685.pdf
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/wovexixipajizefeleviziden.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3301/files/matelikisebunanekalog.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_off00005e91.bin
9572e223ac6918dced5e50664af79f934a30836a258bf60e394bfa5cb3577dbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E91 5640 bytes
font_01_sfnt_off0000717a.bin
fc23114380cf56e7be5f83f5584ffd7e4d9dd8ef4e5d5f8720232eb7eb3d6a62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717A 12776 bytes

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