Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da4060444420527…

MALICIOUS

PDF

40.5 KB Created: 2020-08-30 14:54:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1b3fd994e5577f56ee7bd36a199a9b0 SHA-1: 500cf5b902ca9644c9a9cca64b17e1fa2381f85c SHA-256: 1da40604444205276d156c0495ea007d78248060574726d7318306d2d2effa57
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=streaming+film+hds', suggesting a lure for potentially malicious content. The PDF also features a large number of external links, as flagged by PDF_SEO_LINK_FARM, which is a common tactic for distributing malware or phishing content.

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.com/wix?keyword=streaming+film+hds
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/jukifinikikazavetedofop.pdf
    • https://cdn.shopify.com/s/files/1/0464/5198/2504/files/14871353072.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/simple_harmonic_oscillator_download.pdf
    • https://static.usrfiles.com/ugd/158fb9_4b618e6545d046eca9603fd4e98bc323.pdf
    • https://static.usrfiles.com/ugd/6908d7_bbdb4426fcd740569bcb4ac05083749b.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_ecd6afde36474132a19b759d38f80552.pdf
    • https://static.usrfiles.com/ugd/b8c837_31eafa4a4833453b89353e055376cbda.pdf
    • https://static.usrfiles.com/ugd/b8c837_dca6ca4fdd294ad1afac36aad4b7c27e.pdf
    • https://static.usrfiles.com/ugd/bd5c68_81f9b1c65d5c445ab0d305eb94f35845.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/73549035635.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/42754125655.pdf
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/zujalubew.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/35099671685.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_off00006050.bin
9cf1bc5dc45bc87135e1f86ea2665a41c47ce78946f4053f22fbbc7e1ecf920c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6050 5424 bytes
font_01_sfnt_off00007286.bin
885ab3d804324cc4a994a08e21c50813b0f9961f7200e8572b2e321ecdab4c1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 10292 bytes

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