Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dfbefed12870f6…

MALICIOUS

PDF

34.7 KB Created: 2020-08-26 22:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46a2419c7c4e4fbf456376b421041ea6 SHA-1: c06883e68280881c1eafd7acd7934d30f46f4673 SHA-256: c5dfbefed12870f6fbe6d7f3e4e18fe546575702e743a4897c2a62ee34e8020e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=manualidades+para+arreglos+florales'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious content. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to increase visibility. The presence of the malicious redirector URL indicates an attempt to lure the user to a harmful destination.

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=manualidades+para+arreglos+florales
    • http://files.juliakur.com/uploads/1/3/0/8/130874102/726cfc1d02aed6f.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2013/files/6691218964.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/86600785425.pdf
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/wajabamejitakopuzetoz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8792/1313/files/materiales_metalicos_no_ferrosos.pdf
    • https://cdn.shopify.com/s/files/1/0437/2312/8986/files/zaniwemukufuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/pototetoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/novom.pdf
    • https://cdn.shopify.com/s/files/1/0430/4034/2169/files/fluke_fishing_reports_ny.pdf
    • https://cdn.shopify.com/s/files/1/0439/2294/8264/files/buying_property_in_scotland_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/4912058048.pdf
    • https://cdn.shopify.com/s/files/1/0437/8250/4600/files/systematic_review_methodology.pdf
    • https://cdn.shopify.com/s/files/1/0433/7526/3909/files/jijovevetifubuvumema.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_off0000496e.bin
4eea2607870334506faed63d5f50843e634238d3527a76422a0300733b6da287		 pdf-font-stream PDF embedded font (sfnt) at offset 0x496E 5216 bytes
font_01_sfnt_off00005b3a.bin
29d70fa79af80caab652d951beab043b9aeb11b5f49c67fb998fed9cdd994215		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3A 10272 bytes

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