Malicious PDF — malware analysis report

Static analysis result for SHA-256 f763fcdab78b33cd…

MALICIOUS

PDF

49.5 KB Created: 2020-08-30 20:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b4f6b728cd5db887bc942a0a620dc48 SHA-1: ca741497b16615004aaf3b364e8f46df440cd3da SHA-256: f763fcdab78b33cd644076983bab8ebf4588c4031470c4605cb0434398d6a226
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content. The embedded URL 'https://ttraff.com/wix?keyword=escatologia+biblica+estudios' is the primary indicator of malicious intent, likely leading to a phishing page or malware download.

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.com/wix?keyword=escatologia+biblica+estudios
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/62256723470.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/english_vocabulary_words_with_synonyms_and_antonyms.pdf
    • https://cdn.shopify.com/s/files/1/0432/9209/8724/files/vajijewenakatexuti.pdf
    • https://cdn.shopify.com/s/files/1/0432/5307/2022/files/tixipamikir.pdf
    • https://cdn.shopify.com/s/files/1/0436/9242/5384/files/gorogumivubino.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa9ca426d15349f3a5bc093628f85eeb.pdf
    • https://static.usrfiles.com/ugd/affaa6_0f82621b7f8c4546801d4e6621132a96.pdf
    • https://static.usrfiles.com/ugd/99965f_a1b122a052a54337b6e0055e470095be.pdf
    • https://static.usrfiles.com/ugd/10b11f_91b94c0ce2e14a008e8ea1a8c925b0d0.pdf
    • https://static.usrfiles.com/ugd/ea2f88_3ecaf1887468485e989ff73da2d21df4.pdf
    • https://static.usrfiles.com/ugd/3e9e83_3c8d721830aa4efbb19181f403081bb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_9979734c352b4e92a8f1826d6c7d9f22.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbac040239c144b69e7ab5f200ec356c.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf567948d778449dadfef72b0fab2175.pdf
    • https://static.usrfiles.com/ugd/7d21c0_7f1885dde0fd4506b58816f1c89834da.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_off00008176.bin
22f8c624b79e02b9c572e7733355020c163b81eca04b9cc37bc115dd23145e83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8176 5108 bytes
font_01_sfnt_off000092df.bin
b5c9d2cbdbccdaf7a271c5c461ac9936f6563c1b7878c0c59c3c2329425465d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92DF 11336 bytes

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