Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e9e5df8270bb2f4…

MALICIOUS

PDF

43.3 KB Created: 2020-08-05 13:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7de7964b9c244ce441f64827ce703ae3 SHA-1: 8493c771247ffbb9e8d1c6292e07ca70271ec8ff SHA-256: 9e9e5df8270bb2f49ebda9ecc0094bbf705966c7e83694b2b94cb34c95f0cd48
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a common technique for SEO poisoning and distributing malicious content. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination of the payload. The document body, though heavily obfuscated, contains the URL that triggers the redirection, suggesting a lure to a malicious site.

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.cc/pify?keyword=area+of+2d+shapes+pdf
    • http://files.caveiraphotography.com/uploads/1/3/2/6/132681836/lapireru.pdf
    • http://namutu.meganbadger.com/uploads/1/3/1/8/131856476/4350653.pdf
    • http://kisif.lawyer-netherlands.org/uploads/1/3/0/8/130874058/1a83e615a396.pdf
    • http://files.saintpatrickwapella.org/uploads/1/3/2/3/132302787/jazulidoxu-xojiwuvinufuzim.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/46650303947.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lunizededalusabunis.pdf
    • https://cdn.shopify.com/s/files/1/0439/9644/6878/files/zegotofupu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/jusijulepesam.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/89517708033.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/3990512338.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/karexuruforamejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/magusikavagegufiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5433/3093/files/visapulijibejenerunowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6968/files/jelizibuji.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/sefezagiwigokibip.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_off000068a9.bin
005b8b5a6018ac2cae3d92fd1959450d01b95fc43861d2d79798380aabc168d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68A9 5220 bytes
font_01_sfnt_off00007a6d.bin
d2350dd16340d1a9dcbfef1d96b4e043a1fd8ed5937664ac88ca78e7fa7784f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6D 11148 bytes

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