Malicious PDF — malware analysis report

Static analysis result for SHA-256 35f59689b7fb3509…

MALICIOUS

PDF

36.7 KB Created: 2020-08-30 16:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a93f3e5e0ae1da80deca2c03dc01050 SHA-1: 4e94c85fd269d80c0b0617473e6f764c31033f65 SHA-256: 35f59689b7fb3509b3c1413ae31314298db9c90bc7a2dc02624473c3de496346
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=your+reality+tabs'. Additionally, it exhibits a PDF link farm heuristic, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to lure the user 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.cc/wix?keyword=your+reality+tabs
    • https://cdn.shopify.com/s/files/1/0439/7711/3758/files/literary_analysis_essay_rubric.pdf
    • https://cdn.shopify.com/s/files/1/0432/4032/5282/files/kitchen_aid_superba_refrigerator_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/15848447388.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_16221201bd47459ea57138a9f3cd4e9c.pdf
    • https://static.usrfiles.com/ugd/dd4472_c8cffd5e57f74dd186e4a63258a2e098.pdf
    • https://static.usrfiles.com/ugd/b8c837_636df3f81567434b8f96819371890238.pdf
    • https://static.usrfiles.com/ugd/89c6ad_625bb00597fa4938b5e673ff40f99cdf.pdf
    • https://static.usrfiles.com/ugd/aef5b7_eda774570e4e49e39a4eabd7a4fd79af.pdf
    • https://static.usrfiles.com/ugd/0adedf_3d5fa478e75a49f0b7b42acce68a00f6.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_off00003f6b.bin
bc60c0befd0266b053ffb15e9023cd9d53c13790f6ef0bd5d7afd8d69d430f30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F6B 3584 bytes
font_01_sfnt_off00004c33.bin
e78a070a11d276f170d7ffd2d52fe4eab0710bf2289320b06d49be42623b2398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C33 4884 bytes
font_02_sfnt_off00005ce3.bin
7a804d1bb8f0624b80d4c371a19e19e4af6fb07597ea82f6cecc21fc2917e637		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE3 13252 bytes

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