Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cce9db7937bb9c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 07:23:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42afea307938623b4848990876f4ca9a SHA-1: a0f228984f5be95f60c6af167ef37f2c8e732a57 SHA-256: d3cce9db7937bb9c51c3164e51e7e35dbaf582a07994dc3145302a713ff01773
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent. No scripts were extracted, limiting further analysis of the payload.

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/pify?keyword=10+commandments+list+pdf
    • http://files.boshuster.com/uploads/1/3/1/1/131163512/f81c3dfe5e80cf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/dezukufozofejixuju.pdf
    • https://cdn.shopify.com/s/files/1/0439/5037/5070/files/bovevujisakazitedebonib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0933/4696/files/62224334072.pdf
    • https://cdn.shopify.com/s/files/1/0428/9704/7718/files/40536167367.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/soxubojolorilafurukirazu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8791/1319/files/povilugisine.pdf
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/gebobijegud.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/44959863340.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/pdf_bsc_zoology_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/4298074871.pdf
    • https://cdn.shopify.com/s/files/1/0433/2067/2409/files/71530711419.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_off00006284.bin
99dfdb65ed1853161e3de896681707c056c83e535b496eb122b9532a456f7595		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6284 5304 bytes
font_01_sfnt_off0000747c.bin
19f1d94c073eb9a560e5fdfef84f160c05dd448bb858b07b3325ef78d210b0be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x747C 10204 bytes

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