Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d92399766a4ab9…

MALICIOUS

PDF

33.3 KB Created: 2020-08-19 01:50:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8aeee42342336da9d5bfa5fd5726bbe6 SHA-1: 4ffbdc948abd6023bc7c2904f86484c24617a86c SHA-256: 32d92399766a4ab9ceb1090982267d392663eab75821217642d4508fbe3cb1a4
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=glazing+sheet+toolstation', which is flagged as malicious. The presence of numerous external links suggests an attempt to lure users to potentially harmful sites.

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=glazing+sheet+toolstation
    • http://rilosa.blessedhopeomaha.com/uploads/1/3/0/8/130814448/aa4e9.pdf
    • http://files.inserviceengineering.com/uploads/1/3/0/7/130738531/rovepu.pdf
    • http://files.torontogratitude.org/uploads/1/3/2/7/132740547/1200484.pdf
    • http://files.jewelconsulting.net/uploads/1/3/2/6/132696018/kopadafunidogoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/22027927699.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/physiologie_du_systme_respiratoire.pdf
    • https://cdn.shopify.com/s/files/1/0448/4136/9761/files/cambridge_key_english_test_2_listening.pdf
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/classification_and_regression_trees_wadsworth_statistics_probability.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/the_day_after_tomorrow_questions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/7988/4186/files/cerita_silat_bu_kek_siansu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4758/files/ruby_warrior_level_4.pdf
    • https://cdn.shopify.com/s/files/1/0431/0623/8626/files/electrical_engineering_textbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4125/9671/files/body_parts_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4568/files/adblock_plus_free.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_off00004701.bin
1f7f9eb34fa71daea8200883270b1233922f0b18bd67311e1ff7eac2cfd37844		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4701 4932 bytes
font_01_sfnt_off000057d3.bin
3c15311be79d28ae6d194b3597898faaf5d0e73af05169c2985ac7856b948433		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D3 9660 bytes

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