Malicious PDF — malware analysis report

Static analysis result for SHA-256 c52f6e61cba45074…

MALICIOUS

PDF

48.7 KB Created: 2020-08-09 22:07:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8e0207ba35ffc4aa9946e04e8eb7415 SHA-1: e4885cc0a3e7325de247e7249af5b13d54f337ec SHA-256: c52f6e61cba4507417d16205ecf19444ed6ef1e52997d0847424988e4d6d7611
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=analisis+del+genero+lirico+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on shopify.com. The ML classifier strongly flagged this PDF as malicious. The embedded URL is likely intended to redirect the user to malicious 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/pify?keyword=analisis+del+genero+lirico+pdf
    • http://files.rapidrealestatevideo.com/uploads/1/3/0/7/130739275/7424497.pdf
    • http://files.sillassenhalf.com/uploads/1/3/0/9/130969555/bevijidu.pdf
    • http://files.longocreative.com/uploads/1/3/1/3/131384643/e270bff73d2d765.pdf
    • http://files.kreativefutures.co.uk/uploads/1/3/1/4/131437229/gabiwizoxesizer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdf
    • https://cdn.shopify.com/s/files/1/0432/0621/3789/files/subenogelisozon.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/xabanivor.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/novuwimez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sibubemazalomasedexikeme.pdf
    • https://cdn.shopify.com/s/files/1/0433/6192/7318/files/guxapobufivugusun.pdf
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/132363837.pdf
    • https://cdn.shopify.com/s/files/1/0434/1438/8892/files/java_beginners_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4449/4760/files/24944297017.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7505/files/duwaruga.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6973/files/niwolopoduwaj.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_off00007c6f.bin
1276326a46c930d700cef44ccdcbbf1a0c374a4ebec4e8c3d33e3f832ec17e92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6F 5312 bytes
font_01_sfnt_off00008e92.bin
9ec7d433cd389f5627816f289b59e5a939e7c91cb87d6fe767a65302fd64ca4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E92 11604 bytes

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