Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2165b0dbf1e19d6…

MALICIOUS

PDF

48.1 KB Created: 2020-08-18 22:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 551b83bc8e0e66f70646da6500cbafe3 SHA-1: 59cd744d75e5d4feaa8b32312dc892bf004029bd SHA-256: c2165b0dbf1e19d6e4d52f804247dd25270f37434ecea341a3a6d83b58eb6151
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains text related to 'Mumps orchitis treatment guidelines' and the malicious URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation to drive traffic to malicious sites.

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=mumps+orchitis+treatment+guidelines
    • http://files.alchemyperfume.com/uploads/1/3/1/4/131437018/3d269c91590370.pdf
    • https://cdn.shopify.com/s/files/1/0440/6237/6088/files/8977085451.pdf
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/85541975432.pdf
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/zunekegerofukopixu.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/13112989739.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0865/files/pea_shooter_gungeon.pdf
    • https://cdn.shopify.com/s/files/1/0449/9639/5166/files/acuerdos_comerciales_regionales.pdf
    • https://cdn.shopify.com/s/files/1/0431/4028/4583/files/98931571316.pdf
    • https://cdn.shopify.com/s/files/1/0434/3070/7356/files/webavizotakurubofijumise.pdf
    • https://cdn.shopify.com/s/files/1/0431/4470/8245/files/39631722434.pdf
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/pumesesafiwobenun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/nigudibuxatesuxi.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/
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/z

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e26.bin
9a31ec6fc240e157c4413a20b3f301108786ecd848693e9b6bf4d42793664c11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E26 5492 bytes
font_01_sfnt_off000090b7.bin
5841bd057a7dd1c4806ff3cd0a77eaef031adfb6d392c51a99f34049e30355d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90B7 10180 bytes

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