Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0438985379146f…

MALICIOUS

PDF

57.8 KB Created: 2020-08-28 15:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea96be600ca4368977c87e4ea17a578b SHA-1: ad4796993f46ec4e307bb799ab87c4ea0616eeec SHA-256: da0438985379146ff51e7a713a6f69e828cc4f13fec479911e943ba3a8e912bd
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body also contains text that appears to be a lure, instructing the user to copy and paste content, likely to execute commands. The primary malicious URL identified is https://ttraff.ru/pify?keyword=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B3%25D0%25BE%25D1%2582%25D0%25BE%25D0%25B2%25D1%258B%25D0%25B9+%25D1%2581%25D0%25B5%25D1%2580%25D0%25B2%25D0%25B5%25D1%2580+hurtworld+0.3. This suggests a phishing or malware distribution attempt.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B3%25D0%25BE%25D1%2582%25D0%25BE%25D0%25B2%25D1%258B%25D0%25B9+%25D1%2581%25D0%25B5%25D1%2580%25D0%25B2%25D0%25B5%25D1%2580+hurtworld+0.3
    • http://files.capitollakesmix.com/uploads/1/3/0/9/130968962/1362833.pdf
    • http://files.simcoeanimalhospital.com/uploads/1/3/0/9/130969402/33c96d3a3d.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/38044030466.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1032/files/61849544079.pdf
    • https://cdn.shopify.com/s/files/1/0447/9831/2609/files/86678106376.pdf
    • https://cdn.shopify.com/s/files/1/0439/3785/7691/files/stem_cell_therapy_for_heart_disease.pdf
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/impulse_physics_problems_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0439/1796/7528/files/ralokajugedep.pdf
    • https://cdn.shopify.com/s/files/1/0436/6693/1862/files/faserolenidutu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1050/5373/files/adidas_performance_store_dubai_mall.pdf
    • https://cdn.shopify.com/s/files/1/0429/0753/3475/files/ap_grama_sachivalayam_syllabus_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/tv_advertisement_video.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/warangal_weather_reports.pdf
    • https://cdn.shopify.com/s/files/1/0437/4354/3447/files/60410543027.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/dunakowal.pdf
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/dokogalale.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_off00009127.bin
c455927e82cb8a188b39b0d00263665c42eb8ee7d3ee0f8a16a040da7dda758f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9127 6380 bytes
font_01_sfnt_off0000a5e5.bin
948bc69e12160c55c23788570b9704b5ca94db00e6dc9bcf5f47c25174d1e530		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5E5 16008 bytes

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