Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f09041809215d98…

MALICIOUS

PDF

51.0 KB Created: 2020-08-20 09:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 575702722bdc21767facf5235bf69a10 SHA-1: dab109cba6155140caf3b8b63f1f811b2af6a169 SHA-256: 9f09041809215d98955e3984f7cc7ec7ca5bfc240e2848a3a4d358036eaa751f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link T1566.002 Spearphishing Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, one of which is the first URL listed in the heuristic. The document body also contains the text 'Windscribe app for pc', suggesting a lure to install software or an extension. The SE_BROWSER_INSTALL_LURE heuristic further supports this, indicating the document's intent is to trick the user into installing something.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.ru/pify?keyword=windscribe+app++for+pc
    • http://files.lensofmysoulphotography.com/uploads/1/3/0/9/130969841/tuxol.pdf
    • http://kupepun.nourajost.com/uploads/1/3/1/4/131406390/povipibakuraga_bubezufasa_sefogigenak.pdf
    • http://files.clearwaterninja.com/uploads/1/3/1/4/131453560/5195655.pdf
    • http://nefodo.lphschem.com/uploads/1/3/2/6/132682663/2679044.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/cyclohexane_conformation_practice_problems.pdf
    • https://cdn.shopify.com/s/files/1/0430/9552/3485/files/la_importancia_del_bautismo_en_agua.pdf
    • https://cdn.shopify.com/s/files/1/0463/7773/0209/files/cg_video_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0428/2574/4540/files/article_370_35a_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0437/7303/4657/files/beef_vegetable_stew_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0440/4445/2005/files/bronislaw_malinowski_biografia.pdf
    • https://cdn.shopify.com/s/files/1/0434/0855/6182/files/my_airtel_recharge_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/6979/0625/files/bikini_bottom_day_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/kinesics_communication.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/91436341045.pdf
    • https://cdn.shopify.com/s/files/1/0435/4224/9621/files/t-_shirt_order_form_template_free_blank.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/simplifying_expressions_with_fractional_exponents_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/sameluket.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000698d.bin
f583cdf97f03131fa12259fcba4c8f2b00f2b62bf4ebb15d014744fbc6145d91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x698D 5272 bytes
font_01_sfnt_off00007b7d.bin
d2cd98eda3bb301c349f83497b116709750aa4c373c9bd198ee53ee8aab646d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7D 1936 bytes
font_02_sfnt_off000084bf.bin
5112be2b69764de506ee147e9be4c0356ec97dc5ed1d37bf744a241a144a2f87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 10532 bytes
font_03_sfnt_off0000a906.bin
c5b81f703ebddc697e6824868dcd306aba919aa4c1ec28f594a83a04df97872b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA906 16144 bytes

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