Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c6e433eba97d90…

MALICIOUS

PDF

47.1 KB Created: 2020-09-01 13:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9021d6b0c39a6c39ce66e3230ed2fddc SHA-1: d27fd698373999a5803aa635f897a2145d3696d2 SHA-256: b0c6e433eba97d90d651604f2bc86e6f6e6167d6fe6de186cbc46d20e3dd1e53
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a mass of external links, including one pointing to a known malicious redirector at ttraff.cc. This suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the URL that likely serves as the lure. No scripts were extracted, and the PDF structure itself does not indicate specific exploitation techniques beyond redirection.

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/wix?keyword=quantitative+aptitude+shortcut+tricks+pdf
    • https://cdn.shopify.com/s/files/1/0431/0292/9047/files/19894200100.pdf
    • https://cdn.shopify.com/s/files/1/0438/4459/9958/files/61057437892.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7384/files/prentice_hall_america_history_of_our_nation_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/sewarezejukivisigopizek.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/wings_of_fire_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/concept_of_time_value_of_money_in_financial_management.pdf
    • https://cdn.shopify.com/s/files/1/0457/6906/4614/files/26437801170.pdf
    • https://static.usrfiles.com/ugd/d1c05f_aa2a4059877e47bbabbefb444d6d128b.pdf
    • https://static.usrfiles.com/ugd/b8c837_313294f36f494534b0edf1813c446110.pdf
    • https://static.usrfiles.com/ugd/22739b_d9d8460d1ae5449fafb09616a23abc57.pdf
    • https://static.usrfiles.com/ugd/3e87bf_91e23002d9874ead98a9301e5d30b2a7.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006354.bin
97d3d1f7d52204e121ce8e087d5b4914d17a03babb3e607c62742dac265b40f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6354 5396 bytes
font_01_sfnt_off000075a5.bin
33d80b5e357abfa3ea91f5eff18928953f8e36d8e9a7aea158c838e8ae756dd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A5 2116 bytes
font_02_sfnt_off00007f6f.bin
055e8fea0d5ff94247435bffc522a917e77281ca3555cbeea2ac2e5f021d5df1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6F 15092 bytes

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