Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3fe2fa65436f6b9…

MALICIOUS

PDF

37.7 KB Created: 2020-08-24 13:51:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 601630b7ab19029bde9bd9944c8b1d16 SHA-1: 476322e8f81ed6fbfb155c98d82cb924a12cbf87 SHA-256: a3fe2fa65436f6b9d9e9478e51e2be7d12844572e2dbf7732e411fe62e498d99
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.cc'. The document body also contains this URL, presented as a lure for a movie download. Additionally, the file exhibits characteristics of a PDF link farm, embedding numerous links, many of which point to Shopify domains hosting other PDF files. This suggests a campaign to distribute malicious content or drive traffic through a redirector.

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=basketball+diaries+movie+free
    • http://files.jasmineforbuncombe.org/uploads/1/3/1/6/131607029/9313004.pdf
    • http://files.belizehomesource.com/uploads/1/3/0/7/130775768/fodalabaxaloz.pdf
    • http://files.small-product-photography.com/uploads/1/3/0/7/130775413/josoj-wekefone.pdf
    • https://cdn.shopify.com/s/files/1/0438/2995/2674/files/shin_chan_tamil_full_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mogapusezonoxifetomo.pdf
    • https://cdn.shopify.com/s/files/1/0451/8517/1607/files/speak_now_1_student_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/cognitive_ability_test_practice.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/problem_solving_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/88635932089.pdf
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/takeuchi_tl12r2_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/chateau_montelena_chardonnay_tech_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/5007/2214/files/ibps_po_admit_card_prelims_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/44202382110.pdf
    • https://cdn.shopify.com/s/files/1/0454/2916/2152/files/lifeproof_vinyl_plank_flooring_installation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/fur_elise_classical_guitar_sheet_music.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_off00004e0c.bin
cacc5ff570ec0a73ef1545fbf47b851d51b9701fc3393749fb8fa25629fcb5be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0C 5368 bytes
font_01_sfnt_off00006039.bin
5ddac096174e1f7e1cea21e72d6f8bfb32a7bac3e97f41d9f3f6dd5804ae26bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6039 13044 bytes

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