Malicious PDF — malware analysis report

Static analysis result for SHA-256 53db24309ade1853…

MALICIOUS

PDF

41.9 KB Created: 2020-08-01 18:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e35806a336129a3e9f878f283af68b0f SHA-1: 963eddab0767f2a4225789fb7dc76d3b76eb2866 SHA-256: 53db24309ade185363a88e2f5bd7a8f6ff710017e75eeb8d568be138c483a029
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a lure to install a browser extension or update, a common social-engineering tactic. It embeds a large number of links, many pointing to shopify.com, but one critical link redirects through ttraff.cc to a URL containing 'netgear+wndr+3700+manual'. This redirector is known to be malicious and likely serves as a first stage for malware delivery or phishing. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=netgear+wndr+3700+manual
    • http://files.victoriabaker.net/uploads/1/3/1/4/131406430/wulelizijamiwijof.pdf
    • http://files.phimi.pt/uploads/1/3/1/4/131482954/4e834d.pdf
    • http://files.sumid.com/uploads/1/3/1/6/131637055/6574625.pdf
    • http://files.woodlandparkpack20.org/uploads/1/3/1/3/131380915/bf9a82dff0569cd.pdf
    • http://files.everychildisamiracle.org/uploads/1/3/1/0/131070826/2589213.pdf
    • https://cdn.shopify.com/s/files/1/0428/9613/0211/files/xedefuwosewuvet.pdf
    • https://cdn.shopify.com/s/files/1/0434/7356/7894/files/vapowajadina.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/gukugorolozafifib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/87756698901.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/24638220112.pdf
    • https://cdn.shopify.com/s/files/1/0439/2304/6568/files/38791832365.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/vutulegifuzapovo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/muruxope.pdf
    • https://cdn.shopify.com/s/files/1/0439/2206/3515/files/38974390444.pdf
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/gepenoke.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/html_image_viewer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005980.bin
bc197d91ba1b6a7bdf4f72fbeb762b0d0aa9de5166a4b7edc197ca678fd2fba0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5980 5136 bytes
font_01_sfnt_off00006af2.bin
bf2d67689415760b114a84fcc5724957fcecefb1cf2389803dc85ba60dbd589a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF2 9880 bytes
font_02_sfnt_off00008cc2.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC2 4324 bytes