Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ffd432d3933b8a…

MALICIOUS

PDF

46.1 KB Created: 2020-08-07 03:50:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a727fe99794fa21bb5b67df5ccdd3f4 SHA-1: fc4208d043a8818bf50d13215b45d09716afaa38 SHA-256: e2ffd432d3933b8aebce0d90306b39565b40fbde1f2d88e4640a83d1c3bf6353
120 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, specifically pointing to 'https://ttraff.cc/pify?keyword=internationalization+definition+business+pdf'. This indicates the document's primary purpose is to lure the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. 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.cc/pify?keyword=internationalization+definition+business+pdf
    • http://vojezupi.leahradetsky.com/uploads/1/3/0/7/130775734/98ff6c1cb209391.pdf
    • http://files.michaelwinograd.net/uploads/1/3/1/6/131637273/rinenafizem.pdf
    • http://files.cuyamacawoodsfsc.org/uploads/1/3/0/8/130874652/wemenukavogo_vesowapolukir_guvikozozatufi_ratawarevagi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/jesemasovedisasomoxuja.pdf
    • https://cdn.shopify.com/s/files/1/0435/8035/8815/files/kedifozireva.pdf
    • https://cdn.shopify.com/s/files/1/0444/8750/8135/files/the_anatomy_of_revolution_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/lufabovetidemutojiwezax.pdf
    • https://cdn.shopify.com/s/files/1/0430/9444/2145/files/mawinadorosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/rexin.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/2007_honda_civic_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/0364/7912/files/set_timer_for_14_minutes.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/nawotapejez.pdf
    • https://cdn.shopify.com/s/files/1/0429/0697/6422/files/central_machinery_wood_lathe.pdf
    • https://cdn.shopify.com/s/files/1/0437/1103/7589/files/gipoditimerapinegepus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000698c.bin
4019a6fbf113dccba16faa438f35c0ed9ee1882e34da9c4d5fae16325161d091		 pdf-font-stream PDF embedded font (sfnt) at offset 0x698C 5044 bytes
font_01_sfnt_off00007ab7.bin
40b4ffe62219b83c8a143a6b7f023a8f4a347d1beb5fd22293fdebb9969e7ef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB7 10144 bytes
font_02_sfnt_off00009d7b.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D7B 4324 bytes

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