Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f03a3406ea6d8f…

MALICIOUS

PDF

45.4 KB Created: 2020-08-19 08:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62f304f0828d56da18804866c734d422 SHA-1: aeea475533cc1a3d85d9178a099a3fdd091b76d0 SHA-256: 96f03a3406ea6d8f3a6ed6792d89c3bcd8c26b1de8ed58c26dc25a7f01861c3f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to obscure malicious destinations or to create link farms for SEO poisoning. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=baddest+boy+wizkid', is flagged as a known malicious redirector. The document body contains garbled text along with the same malicious URL and several benign Shopify URLs, suggesting a lure to a malicious site disguised within a seemingly innocuous document.

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=baddest+boy+wizkid
    • http://files.praysingministry.com/uploads/1/3/2/6/132695546/f4a049ac14.pdf
    • https://cdn.shopify.com/s/files/1/0428/8600/4899/files/37140884184.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/17190794979.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6102/files/sogazuforumazat.pdf
    • https://cdn.shopify.com/s/files/1/0433/7329/7822/files/65571990541.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/99072363384.pdf
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/hazardous_area_verification_dossier_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/kindle_email_address_convert.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/chatterjee_parasitology_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/xusabowufi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/roller_coaster_polynomials_project_part_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0448/1862/8765/files/pdf_to_autocad_2018_converter_online.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_off00006535.bin
951426f162e1b017214618fa9312cbd18d3f845b79d656266f0abbbc142b985d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6535 5188 bytes
font_01_sfnt_off0000770b.bin
0e8c6343339f10568dddbd4276fa413b9e60b3483d8bbf784f437eb149ce4681		 pdf-font-stream PDF embedded font (sfnt) at offset 0x770B 16096 bytes

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