Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd2cf81da94286c…

MALICIOUS

PDF

63.4 KB Created: 2020-08-22 02:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e5c6a63e943eed0d72ce732ff481208 SHA-1: d591d5f75655bed2a66aa74f1b74ef9f63a69c84 SHA-256: 2fd2cf81da94286c5f82fe70f46aa29e663e3f26099cedad7cc1c4b5714d454b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bailando+enrique+iglesias+spanish'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and several other Shopify-hosted PDF links, suggesting a coordinated effort to distribute malicious content. No scripts were extracted from this sample.

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=bailando+enrique+iglesias+spanish
    • http://purifage.bareblisswaxing.com/uploads/1/3/1/6/131637016/zilusujer.pdf
    • http://files.cambridgediscoverypark.com/uploads/1/3/0/9/130969509/7747781.pdf
    • http://metigikiw.adventuresatyourdoorstep.com/uploads/1/3/0/7/130740572/9585232.pdf
    • https://cdn.shopify.com/s/files/1/0431/0096/2977/files/71757941346.pdf
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/viseropiwunobozebid.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3829/files/dwarf_fortress_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/2805/2130/files/sansumg_ml_2165w.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/barron_s_ielts_practice_exams_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fokukivovasogu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/49816061651.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/gozosamelarekeligebade.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_off0000a8ce.bin
98b0ebbfa7339dd91b05a7cb183c699c126e738007c0084a6bc2582d47e38fe5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CE 5396 bytes
font_01_sfnt_off0000bb0a.bin
cda9d9a6682861e04005d350759b394c5638e0606d628f9ed8cca9cfacd8595b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB0A 17364 bytes

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