Malicious PDF — malware analysis report

Static analysis result for SHA-256 3754ef0ba571ad70…

MALICIOUS

PDF

38.9 KB Created: 2020-08-30 09:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae23dac1ca8a5cc112d46c3852ecf4ae SHA-1: 09316f3cebeb00926e956b835aee7ad5f520df3a SHA-256: 3754ef0ba571ad701d48628c2e82f4eb6475482a050e5fa95965cca612277d94
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=beneficios+de+aceite+de+romero+en+la+piel'. The document body, though partially corrupted, also contains this URL and text related to 'Beneficios de aceite de romero en la piel', suggesting a lure to a malicious site. The presence of a large number of embedded links, many pointing to Shopify, further indicates a link farm or SEO manipulation tactic to distribute the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/wix?keyword=beneficios+de+aceite+de+romero+en+la+piel
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/kelevowavizisunazozo.pdf
    • https://cdn.shopify.com/s/files/1/0444/2321/7318/files/63805746547.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/kubev.pdf
    • https://cdn.shopify.com/s/files/1/0435/6007/5427/files/pamar.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8ee6b17fb5641bd94b5b5786a7b4a0e.pdf
    • https://static.usrfiles.com/ugd/868401_70713d1de6e54a918fbb6d279f846303.pdf
    • https://static.usrfiles.com/ugd/3e87bf_7585ba544b474d7a939c2f6998093bd1.pdf
    • https://static.usrfiles.com/ugd/b8c837_62ab793de3bc4b608b0e00e84daca059.pdf
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/lorasisalowabewi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/39097938512.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/reflejos_arcaicos_pediatria.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_off00005a58.bin
afb8a9046e7cb30eddf60943751299e2bcdb20525b39f0f05b6236aaa319b4f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A58 5348 bytes
font_01_sfnt_off00006c6b.bin
39088451a62b15beb35db08cb4b23df85dae5cb9d2a9698aad75e6feddab1768		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6B 10112 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.