Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb2aa7a2c6a25f9…

MALICIOUS

PDF

40.5 KB Created: 2020-09-03 01:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d713d25e5386ec4e99387818f2030b5 SHA-1: 4d5b7ef27161b9adb0ec53709979dccc62d1b815 SHA-256: beb2aa7a2c6a25f93e5d3c6bc025731d6ffae22e296a10b6f87bd980894ab119
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link 'https://ttraff.link/wix?keyword=best+football+games+2018' leads to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is part of a larger effort to generate traffic through numerous external links. The document body contains garbled text but also includes the same malicious redirector URL and numerous other URLs hosted on cdn.shopify.com, likely part of the link farm.

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.link/wix?keyword=best+football+games+2018
    • https://cdn.shopify.com/s/files/1/0445/4517/9807/files/10252108630.pdf
    • https://cdn.shopify.com/s/files/1/0431/6731/8167/files/hedwig_village_police_report.pdf
    • https://cdn.shopify.com/s/files/1/0464/8068/7272/files/mofowajelivu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6536/0034/files/angular_material_tutorialspoint.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4375/files/federal_supreme_court_cassation_decision_volume_20.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/bepasisazo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/74979651385.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ca48d9cf1ea42d6b622902e88f03f13.pdf
    • https://static.usrfiles.com/ugd/2813e2_5a00c9c04131488793aaf18cfefefda8.pdf
    • https://static.usrfiles.com/ugd/ab63e3_e21ea5961a3a456ab16e11ec7b47737b.pdf
    • https://cdn.shopify.com/s/files/1/0434/8205/4813/files/vusurolen.pdf
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/godfather_theme_trumpet_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/6713/8470/files/6045900139.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_off00005f92.bin
777a1a16f97384b8c9ca30ea2fec08bb2614fe81e53732c3142f54213c73fc38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F92 5700 bytes
font_01_sfnt_off000072f6.bin
2dd7e0a8ec68d3354bee1382734243a8e18a7e3cd30517693a957005b23fc0c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F6 10112 bytes

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