Malicious PDF — malware analysis report

Static analysis result for SHA-256 c43b3bb029fc5efd…

MALICIOUS

PDF

41.9 KB Created: 2020-08-02 15:18:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b75b37a6bd0e3f7f1a10e2e7610ed20 SHA-1: 75bc48e1689686c3fd6b251ce44d379439a92ccc SHA-256: c43b3bb029fc5efd0f5e9907050d9e9e5b9a1821d50f04cf536de43ceda0bbc3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.com/pify?keyword=fury+warrior+pvp+talents'. Additionally, it exhibits a PDF link farm behavior, embedding numerous links to other PDF files, many hosted on Shopify domains. This suggests a social engineering lure designed to drive traffic to malicious infrastructure.

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=fury+warrior+pvp+talents
    • http://files.davonloeb.com/uploads/1/3/1/4/131408068/dukufiwofuxusimik.pdf
    • http://files.jardingallery.com/uploads/1/3/0/8/130814081/46b404e19f1315.pdf
    • http://files.claimministries.org/uploads/1/3/0/7/130776590/jirawiw.pdf
    • http://files.maplerunfriends.com/uploads/1/3/2/3/132303035/bonuliw.pdf
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/catalogo_avon_campagna_6_2020_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/ruwolu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/intelligence_bureau_2016_exam_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0431/5679/9648/files/didixepogu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/vuberaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/pozosowaguxekegafajufikav.pdf
    • https://cdn.shopify.com/s/files/1/0436/6182/0054/files/59263273642.pdf
    • https://cdn.shopify.com/s/files/1/0433/1683/8558/files/duzumerivopera.pdf
    • https://cdn.shopify.com/s/files/1/0428/5608/7708/files/19486136193.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.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_off0000662c.bin
f21cad6351ff97ef86f81d82eb5750a6bfd2ff1178c57a70eedc08943f88e46f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x662C 5024 bytes
font_01_sfnt_off0000776d.bin
c72f75f322da21e372489458397034312f12bbca1bef5d0f1b365183a2684de2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x776D 10408 bytes

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