Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1bb9fe317618b6…

MALICIOUS

PDF

43.4 KB Created: 2020-08-19 03:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 864f93ad5b431e6ba8eb5e25287f30c9 SHA-1: 2c6879b81485e47e8a38c3f5271badabc6e3d2ab SHA-256: 2d1bb9fe317618b62a93e42f8599b566f326aa856c7c43f1aa51a5b233061308
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=accounting+excel+templates+free'. This indicates a social engineering lure, likely attempting to trick the user into downloading further malware or visiting a phishing site. The document also contains a PDF link farm, with many links pointing to Shopify domains, but the primary malicious indicator is the ttraff.cc 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=accounting+excel+templates+free
    • http://rijuwefo.jodisandfort.org/uploads/1/3/1/8/131871462/9020749.pdf
    • http://zogebe.plainfieldspanish.com/uploads/1/3/0/8/130814017/b47e6d1f8275d9.pdf
    • https://cdn.shopif
    • https://cdn.shopify.com/s/files/1/0434/3804/7384/files/anonytun_terbaru_2018.pdf
    • https://cdn.shopify.com/s/files/1/0433/7496/8986/files/signs_and_symptoms_of_hearing_impairment.pdf
    • https://cdn.shopify.com/s/files/1/0435/9585/8083/files/72382409049.pdf
    • https://cdn.shopify.com/s/files/1/0438/5406/9910/files/92561477925.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/64434731936.pdf
    • https://cdn.shopify.com/s/files/1/0440/2121/9493/files/apache_poi_generate.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/bitegepofalekukija.pdf
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/99525462873.pdf
    • https://cdn.shopify.com/s/files/1/0435/1678/8890/files/nexogelizapesuxujub.pdf
    • https://cdn.shopify.com/s/files/1/0432/8564/3419/files/semujesutuzunarolupemawa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/business_english_proficiency_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/47989591657.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/barron_s_sat_book_29th_edition.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_off00006bf3.bin
f3a881af82367a36ddb6e1d42de99d4c974a0c59c14a33281bc6ac5efd1b092d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF3 5392 bytes
font_01_sfnt_off00007e39.bin
3ffeae3b8e46ae3744b3f6bb48ada7f3f7dec81865e9ee428411cc9bb7dbf176
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E39 10080 bytes