Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e03640c61a2d8d…

MALICIOUS

PDF

34.1 KB Created: 2020-08-19 13:49:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47cacc43b3ee01fc002a04e124b1f8c6 SHA-1: 063cae91d33da0d284962fb7e7fa22af4e7174dd SHA-256: b0e03640c61a2d8dc9ebf35126aba04981c0615fbf120efe151e7bb2a4d93305
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body contains text related to 'Ecg report wnl means', suggesting a lure to entice users to click the links.

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=ecg+report+wnl+means
    • http://files.renaissanceone.org/uploads/1/3/0/7/130776791/8817846.pdf
    • http://files.capturedgravityphotography.com/uploads/1/3/0/9/130969588/4367745.pdf
    • http://files.thesausageandmashcompany.co.uk/uploads/1/3/1/6/131606281/cdd235c.pdf
    • http://xozisizo.mogooch.com/uploads/1/3/1/4/131438177/2dd1ee8d3098d56.pdf
    • https://cdn.shopify.com/s/files/1/0432/0519/7985/files/sewigi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/51513525040.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/55420107516.pdf
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/snake_bite_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/43696301223.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9304/files/xajovexukuxuveli.pdf
    • https://cdn.shopify.com/s/files/1/0438/2071/2098/files/caracteristicas_biologicas_del_adulto_mayor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77636621448.pdf
    • https://cdn.shopify.com/s/files/1/0430/4325/8519/files/75702559964.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/89546830529.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_off000047f3.bin
89362a7d2c31ea28f3eddd016b6b542751a42ddd3130f87f14552be9dda2f26d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47F3 5300 bytes
font_01_sfnt_off000059f1.bin
e2fe0bda49c2cceb7e52510004a6a0eee207a1ee42ee17146d7ca2595fdffabd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F1 9912 bytes

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