Malicious PDF — malware analysis report

Static analysis result for SHA-256 c44e9721b484b674…

MALICIOUS

PDF

32.3 KB Created: 2020-08-21 11:20:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95003944d59a11618b25e632c25fce09 SHA-1: 8ad84db9b0ad3aa83a59de771d173988df27f4ea SHA-256: c44e9721b484b6746711ea59afe206734c094d0a9beb615515e6de9f2c3576c8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=sql+server+online+formatter' is the primary indicator of malicious intent. Additionally, a PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm, with 'https://cdn.shopify.com/s/files/1/0437/4393/6673/files/21968168094.pdf' being one of the many linked PDFs.

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=sql+server+online+formatter
    • http://jojoza.faithlutheransidney.org/uploads/1/3/0/7/130739678/ririwuwikoribazagut.pdf
    • http://files.danielbuchanan.net/uploads/1/3/1/6/131606743/b6606811fc4cd.pdf
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/21968168094.pdf
    • https://cdn.shopify.com/s/files/1/0434/7700/8548/files/79444885450.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/klasifikasi_bayam_merah.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/80349342391.pdf
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/aqa_a_level_psychology_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/67539737603.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/international_arbitration_law_and_practice.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_off0000419f.bin
f1f76f9900a0e847d5c00aa7aa1fea51be4daca09bdf0f5b38e9fcea3780b283		 pdf-font-stream PDF embedded font (sfnt) at offset 0x419F 5204 bytes
font_01_sfnt_off0000533a.bin
f51fde1fcace82c321d38ea3100c4805036928e65bb0dea15b489641066da67d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x533A 9844 bytes

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