Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ffaddcae8346e5b…

MALICIOUS

PDF

38.4 KB Created: 2020-08-30 08:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ee9d74dcd8ed9940eb1166ff5e7be89 SHA-1: a29ebcd7f4aab3244cd63a2a7bd25de923c92959 SHA-256: 9ffaddcae8346e5b0e5144a2c20b417da6c13d0bc93d9faf48d094f636c8047c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=download+grid+enb', which is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to a malicious download site.

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.me/wix?keyword=download+grid+enb
    • https://cdn.shopify.com/s/files/1/0438/6675/1131/files/neniwapekok.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/tubijinaxena.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/nijafudatusamafekapa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/dc_power_supply_connectors_guide.pdf
    • https://static.usrfiles.com/ugd/e4ff69_7adf7b5fc6544383a6948f60530a7692.pdf
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/sabekitilititukusani.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/rimemusilazirakow.pdf
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/circleci_android_build._gradle.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/dobazutaxebab.pdf
    • https://static.usrfiles.com/ugd/9cfd0a_af5c297391bf423ba6e6acf137192d13.pdf
    • https://static.usrfiles.com/ugd/b8c837_c21f99e7162d4716ba4de2ede43cec1f.pdf
    • https://static.usrfiles.com/ugd/b5aed9_a689672f0eef4835a4613bd4da36f336.pdf
    • https://static.usrfiles.com/ugd/b0b521_51141c3048414640b4bfdb79f4f3bc6f.pdf
    • https://static.usrfiles.com/ugd/67f5f7_da884641d90e4e3b8517352ca7264b82.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_off000059ff.bin
fe6fcc6859e4237c94a8413b88f835d52ff736567bcf754d6776da17765913ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59FF 5044 bytes
font_01_sfnt_off00006b47.bin
0b64eab7af46f4575b9909baa192309502e9bbbdeb319e22b5475c49ac90af17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B47 9932 bytes

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