Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2376e894277a88…

MALICIOUS

PDF

37.0 KB Created: 2020-08-02 10:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b0a6cee2a76f19f6bce68b8173694b4 SHA-1: ecb1498d6c4f613e5b8c726551497dd04897c4eb SHA-256: fc2376e894277a88ca46d7e3d3b3efbade0e535ac72929e1f5bc26be9d0fe28e
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 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, many hosted on Shopify. The document body contains the same malicious URL, suggesting the primary intent is to lure the user into clicking the link. The PDF structure itself does not indicate complex exploitation, but rather social engineering via a deceptive link.

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=410+shotguns+walmart
    • http://files.gigikentwellness.org/uploads/1/3/1/3/131398117/8797277.pdf
    • http://files.bombstract.com/uploads/1/3/0/7/130740212/4122631.pdf
    • http://files.meadowsoflaurelwood.com/uploads/1/3/1/4/131409677/8553e5.pdf
    • http://files.tactileearth.com/uploads/1/3/1/4/131482991/247987.pdf
    • https://cdn.shopify.com/s/files/1/0432/9753/8203/files/219306564.pdf
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/30739628614.pdf
    • https://cdn.shopify.com/s/files/1/0429/5714/4230/files/17744633070.pdf
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/fajojivuromowezux.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/rokitoliwapavebavipofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0644/3163/files/5932400428.pdf
    • https://cdn.shopify.com/s/files/1/0432/9478/5694/files/24753708739.pdf
    • https://cdn.shopify.com/s/files/1/0436/8865/7049/files/dubewinasanodewa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/muxekake.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/57699318744.pdf
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/67451747019.pdf
    • https://cdn.shopify.com/s/files/1/0430/8847/8359/files/75498627444.pdf
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/71136822363.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_off000051be.bin
b0c11a29320917beb29a1a70ffbd6258050731f168d6a3b94c6802eacf595759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51BE 5380 bytes
font_01_sfnt_off000063fb.bin
8d8d67592436d0f86efb6887dfac3c059efc50bd0ee5de29031f61a1cb1d5881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FB 10440 bytes

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