Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdcac75011610f7d…

MALICIOUS

PDF

42.3 KB Created: 2020-08-21 19:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 598251145d7c7d6621d41626c4554049 SHA-1: fe1a7eee53177f199c4822b4fa56e3f49c209f33 SHA-256: fdcac75011610f7d087e934424b655978872cced9817f8880692ac1415849beb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though partially corrupted, includes the same URL and a title related to 'hollow ground guide service reviews', suggesting a social engineering lure. The PDF also exhibits a link farm behavior, with numerous external links, many hosted on Shopify, likely for SEO manipulation to increase visibility.

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=hollow+ground+guide+service+reviews
    • http://nikeraz.carenergyinfo.com/uploads/1/3/1/0/131070872/ketanaxusekuwur_jipifa.pdf
    • http://files.fusionmindbodyspirit.com/uploads/1/3/1/4/131455680/5084148.pdf
    • http://files.maine207foundation.org/uploads/1/3/0/7/130776828/gikonogaf-zojerivozam-kurosaxibed-kewosilozo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/jotimazixiposejovewo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/zoology_books_for_bsc_part_1.pdf
    • https://cdn.shopify.com/s/files/1/0439/4136/3870/files/bengali_book_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7056/2209/files/84668083080.pdf
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/sazifan.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/13398367330.pdf
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/sufesizesob.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/38627750519.pdf
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/85787995612.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/amylase_producing_bacteria.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5081520916.pdf
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/renowunozoxemuz.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_off000067c1.bin
cb6103df4d75fa1dfff5cf788e04d821ced459924c6ad6b80679a2f308c39c75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C1 5012 bytes
font_01_sfnt_off000078f2.bin
b626863a2f3a8593169ec2ad15186046729f6bb443056fc1038596b791921d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F2 10388 bytes

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