Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd232baebe997d1…

MALICIOUS

PDF

52.5 KB Created: 2020-09-02 00:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3960f92c1b49a091996dc686310685c SHA-1: a2ee7be21363fb5ac698082438e2f2a3eb4c64e7 SHA-256: ecd232baebe997d16f2342e01654cf535626a5b69b0b1ef8fd727ecd41fbf6a1
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=leiomyomatosis+treatment+guidelines'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing its malicious intent. The presence of numerous other links to Shopify PDFs suggests an attempt to blend in or use legitimate platforms for hosting malicious redirects.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=leiomyomatosis+treatment+guidelines
    • https://cdn.shopify.com/s/files/1/0431/6761/3090/files/55978247257.pdf
    • https://cdn.shopify.com/s/files/1/0438/4292/8790/files/4723665923.pdf
    • https://cdn.shopify.com/s/files/1/0466/3469/6869/files/fagas.pdf
    • https://cdn.shopify.com/s/files/1/0438/5678/9664/files/clear_acrylic_sheet_melbourne.pdf
    • https://cdn.shopify.com/s/files/1/0431/0849/9618/files/gelarif.pdf
    • https://cdn.shopify.com/s/files/1/0462/0048/8089/files/65220677645.pdf
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/seus_minecraft_shaders.pdf
    • https://cdn.shopify.com/s/files/1/0437/8063/6833/files/15501836828.pdf
    • https://cdn.shopify.com/s/files/1/0438/1537/0912/files/wijemifitobapatapopu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/rinigigasalaruv.pdf
    • https://cdn.shopify.com/s/files/1/0436/2302/2752/files/maths_optional_syllabus_for_upsc.pdf
    • https://cdn.shopify.com/s/files/1/0434/2041/8198/files/95590885089.pdf
    • https://cdn.shopify.com/s/files/1/0434/5636/4711/files/aurora_ptc_templates.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/introduction_to_combustion_turns.pdf
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/kuponibawurapotibe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7717/files/48438913950.pdf
    • https://cdn.shopify.com/s/files/1/0432/8220/2782/files/electrical_cable_selection.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/24978206669.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_off00008ef2.bin
2d74a06117bef4e6707a582653df629a4280c5141161f1d91d4f96dcf458cb70
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF2 5188 bytes
font_01_sfnt_off0000a089.bin
82d25657a6e56a6a84a8015b4c8820f479bb6d97bcce92e9ef1f4444038bde38
pdf-font-stream PDF embedded font (sfnt) at offset 0xA089 10588 bytes