Malicious PDF — malware analysis report

Static analysis result for SHA-256 8720053d800f8d77…

MALICIOUS

PDF

40.8 KB Created: 2020-09-05 21:15:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66325925f89df68f04fe64bbd0598f18 SHA-1: c68a5d780adc5befc85815219912a72254b62a2c SHA-256: 8720053d800f8d77bf9554e55161d1b53bc05825b7eef4fba4742eec8e8e10b6
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a Netflix payment cancellation notice. This link, https://ttraff.me/wix?keyword=netflix+cancelar+forma+de+pago, is designed to lead users to potentially harmful content. The document also exhibits characteristics of a link farm, embedding numerous other PDF links, with the primary one being https://cdn.shopify.com/s/files/1/0428/9318/1087/files/remoxekotubesavokonuzuxi.pdf, suggesting a broader distribution or obfuscation strategy.

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.me/wix?keyword=netflix+cancelar+forma+de+pago
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/remoxekotubesavokonuzuxi.pdf
    • https://cdn.shopify.com/s/files/1/0446/8791/7209/files/hydrology_and_irrigation_engineering_notes.pdf
    • https://cdn.shopify.com/s/files/1/0437/9436/6626/files/74861669890.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5278/files/grant_cardone_10x.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/kibalixibomojogonegaju.pdf
    • https://cdn.shopify.com/s/files/1/0462/6717/0970/files/android_save_bitmap_to_file.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/73950316918.pdf
    • https://cdn.shopify.com/s/files/1/0437/1084/1000/files/84755621333.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/mathematical_statistics_and_data_analysis_solutions_manual.pdf
    • https://static.usrfiles.com/ugd/b8c837_f473a4c9cbd24e5c98d85ae586332a7d.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec8c941a7d414054beb542e1639821aa.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_off00006022.bin
bae798dbb72e6113417fea8c6f259c163884a95e928c75b48c1dd1a0c75499a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6022 5336 bytes
font_01_sfnt_off00007243.bin
d3ac25b7d9262a9e217306a6e429201db6b457185b38c3d4bebdcc73dd846917		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7243 10716 bytes

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