Malicious PDF — malware analysis report

Static analysis result for SHA-256 47293a877e28dbdd…

MALICIOUS

PDF

39.1 KB Created: 2020-08-02 07:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 684678b1d9ad9a44ae710cf4756ff522 SHA-1: eaf924621004dc6d7896caa902da84f715c43160 SHA-256: 47293a877e28dbdd286d7a25c96f2141b491527a0a5193e20a239136ca568d76
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify-hosted PDF files, indicating a link farm. One of the primary links redirects to a known malicious URL, suggesting a phishing or malware distribution attempt. The document body itself is largely obfuscated but contains the same text as the malicious URL's keyword parameter, reinforcing the malicious intent.

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/pify?keyword=day+to+day+or+day-+to-+day
    • http://files.treatsicecreamparlour.com/uploads/1/3/0/8/130814466/bc4b4a471f.pdf
    • http://files.allisonvestaccompanist.com/uploads/1/3/2/7/132740296/4373050.pdf
    • http://files.nyteched.org/uploads/1/3/1/8/131871871/3439343.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/pudokenuxamu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/zuxixaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/2883/9586/files/kakinatokuvunete.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/sozijukos.pdf
    • https://cdn.shopify.com/s/files/1/0433/6962/7799/files/bugijibifewukamegulufaxez.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/nupesavekuro.pdf
    • https://cdn.shopify.com/s/files/1/0430/9568/7328/files/17958165804.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/kixeviluwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7570/6788/files/44157630452.pdf
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/remisegaxileg.pdf
    • https://cdn.shopify.com/s/files/1/0434/9706/2564/files/85400961727.pdf
    • https://cdn.shopify.com/s/files/1/0428/6837/5719/files/jexizejovipozipekirugaxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86526592296.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_off00005905.bin
4e57d73e7412c0a3419f640e00cc898bed3b8e2ceddbc415c714f0ba3b1cec38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5905 4740 bytes
font_01_sfnt_off00006942.bin
48b83f152f59736c6d58f485b6622a26d56cc154bf4c693ee67e203e69db33d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6942 10980 bytes

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