Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69173d3d5d7b65b…

MALICIOUS

PDF

39.7 KB Created: 2020-08-29 23:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f50c4eee3b9b0c7fd1ae7606c08cea8 SHA-1: fa4ca6f96895d4b9e8f1d750a50afd96e4150a9f SHA-256: e69173d3d5d7b65bdd8f880910078a482bcb53eb32ac5147ceeea1ad33e25d1a
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text and embedded links suggest a lure to disguise the malicious redirection. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which are benign, but the primary malicious link is the focus.

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.ru/wix?keyword=how+to+change+download+location+windows+10
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/nonudadewagovuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6352/files/56576232035.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/vererujogepase.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/83451472431.pdf
    • https://cdn.shopify.com/s/files/1/0440/2796/9686/files/denixalik.pdf
    • https://static.usrfiles.com/ugd/b8c837_88492bafbfee4ccebaf47e4fe01bd625.pdf
    • https://static.usrfiles.com/ugd/b85eb0_111e38d03017417ca827a5c1149d4e7d.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/98927111358.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8368/files/rpg_maker_mv_tileset_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/1591/4151/files/dawigus.pdf
    • https://static.usrfiles.com/ugd/b8c837_6477cf545f694567a7980cc4a6bc81e6.pdf
    • https://static.usrfiles.com/ugd/b8c837_2a7a3304c6474d6ca47f26549268ee81.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_off00005d66.bin
146a78829af2d1cb470422016da76756d8e0718b47c7494aba2f33a5ee8c594a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D66 5352 bytes
font_01_sfnt_off00006fa9.bin
0cedc15ed7a951a663e69eab11f69af35f5adbd8e3f75824bff038fd99a16962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA9 10016 bytes

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