Malicious PDF — malware analysis report

Static analysis result for SHA-256 b44ecaa6e16d47e8…

MALICIOUS

PDF

67.7 KB Created: 2020-08-20 13:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92b5db1fef3089f256bbe2cf8a7dd7d3 SHA-1: d55ca28cf4dfe9ec480d091086755d40fb7d5355 SHA-256: b44ecaa6e16d47e819829d937b303cea0d08262694d630bd93ba4a8b43f19e96
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm, pointing to various PDF files hosted on Shopify and other domains. One of the primary links, 'https://ttraff.com/pify?keyword=druid+guide+5e+dnd', is flagged as a malicious redirector. This suggests the document's purpose is to direct users to potentially malicious or SEO-manipulated content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=druid+guide+5e+dnd
    • http://files.travelingaboutandbeyond.com/uploads/1/3/1/0/131071043/1e42b3921.pdf
    • http://files.twistedimagenyc.com/uploads/1/3/1/4/131483584/191dcb684324bf.pdf
    • https://cdn.shopify.com/s/files/1/0462/5930/6645/files/pusufuvizapigo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4433/7824/files/zaloxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8165/3655/files/15607176542.pdf
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/rimworld_tattered_apparel.pdf
    • https://cdn.shopify.com/s/files/1/0436/1378/2179/files/77925059310.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8909/files/igcse_biology_notes_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/1000_basic_english_words_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xazome.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/43343481717.pdf
    • https://cdn.shopify.com/s/files/1/0436/1751/7731/files/bangladesh_passport_renewal_form_saudi_arabia.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/buzalubazofamaku.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_off0000ce62.bin
e8e9615371a1c6d1144c3534c6493dab698a5c228a3238ef07d1da3199e7d700		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE62 4696 bytes
font_01_sfnt_off0000de6c.bin
3343daf60089fa5b60687b99fb46fb95520468d19c5dea379daff5ebf1063325		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6C 10416 bytes

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