Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dce2e69d6e0a78…

MALICIOUS

PDF

37.6 KB Created: 2020-08-19 08:09:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6af6471b07d06fb992edc522585af3ec SHA-1: 01c7fbea7dc11aa6dbe65417e7fffbf3842ca273 SHA-256: 95dce2e69d6e0a7814b139e1ceaf3a24c634537119c5f9a18b6717d2936938c8
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=microsoft+publisher+brochure+templates', is designed to redirect users. The document body, though heavily corrupted, contains references to templates and software, suggesting a lure. The presence of numerous Shopify links, while mostly benign, forms part of a link farm strategy to obscure the malicious redirector.

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=microsoft+publisher+brochure+templates
    • http://lofabejo.envirohealthuk.com/uploads/1/3/0/8/130874011/xesoturo_gomawu_gabadagalirafan_lepomelisij.pdf
    • https://cdn.shopify.com/s/files/1/0433/5324/3806/files/tajufuxakakoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/fojaludatalujifutamowed.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/mewasepixubovinulozopipo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/18070681281.pdf
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/87571279967.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/60786042746.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/53856517645.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/ceftriaxona_bula_anvisa.pdf
    • https://cdn.shopify.com/s/files/1/0433/7883/5606/files/kugir.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_off00005605.bin
6960a9f8464c667bee83f5ed76d6754240bc5187e56cd8bb3a1d8e6584ad61b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5605 5400 bytes
font_01_sfnt_off00006837.bin
276f0f3fe5d26f8bd8b555f77a0ba2ba285e40c49ce9b4054ba73ec8b7511eba
pdf-font-stream PDF embedded font (sfnt) at offset 0x6837 9784 bytes