Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bcbf59604be8ba6…

MALICIOUS

PDF

36.0 KB Created: 2020-08-02 20:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f7c6a57bab2f3db4ec97c1aab6d2d0c SHA-1: 66d045a92231d3a2a8e7e096d15fac14f354cb35 SHA-256: 8bcbf59604be8ba6b4e51cf8943c133afe4e332f2a3dfdf0292b9c6108eaf202
120 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=download+ready+player+one+pdf'. Additionally, it features a PDF link farm with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to downloading a PDF and the authoring application, suggesting a lure to download further content. The primary intent appears to be redirecting users to malicious infrastructure via the ttraff.com domain.

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=download+ready+player+one+pdf
    • http://files.sillassenhalf.com/uploads/1/3/0/9/130969555/bevijidu.pdf
    • http://files.openarmsbanduk.com/uploads/1/3/1/6/131637226/5304286.pdf
    • http://files.genpromotion.nl/uploads/1/3/0/8/130874359/nerolarufidizunulito.pdf
    • http://files.zoehounta.com/uploads/1/3/1/1/131163635/gojaxiluja-zurojimaz-zimarobaxopopa-dobonexow.pdf
    • https://cdn.shopify.com/s/files/1/0440/2275/9582/files/21577087669.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/57288978793.pdf
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/bebilojilumif.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/41726890872.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/voxidugoduniluwiba.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/8809629416.pdf
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/gimulesif.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/93476051026.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/94750535601.pdf
    • https://cdn.shopify.com/s/files/1/0433/4691/9579/files/14337732377.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/62223849046.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_off00005099.bin
a7020e7a26effd5c3fe8373db5490e02f05392e5578d11cf7cd01839a9a14240		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5099 5052 bytes
font_01_sfnt_off000061f7.bin
49025d474a6919f051b82a08f482fe89042b80146f86023557f390a0822855ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 9744 bytes

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