Malicious PDF — malware analysis report

Static analysis result for SHA-256 9253d5046d0f69c2…

MALICIOUS

PDF

47.2 KB Created: 2020-07-28 17:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e8dab480c3d908fbc2257d13a798c55 SHA-1: 247880e8e0f6bdfb8e7d8f0d88f987a9a33f42b4 SHA-256: 9253d5046d0f69c24b31dcaf3cd7ff4b15757283bf1661bee69ed36e9c7119a2
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF SEO link farm. Another heuristic flags a link to known malicious redirector infrastructure. The primary attack pattern involves luring users to external sites via these links, likely for malicious purposes. No scripts were extracted, and the document body was unreadable.

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=green+hill+zone+music
    • http://files.sitesofpassage.org/uploads/1/3/2/7/132712096/gekavikilan.pdf
    • http://files.whatsthegfc.com/uploads/1/3/2/7/132740564/zesuf.pdf
    • http://files.winsberg.net/uploads/1/3/0/7/130739918/penizeniga-lebowejefime.pdf
    • http://files.longislandswimschool.com/uploads/1/3/1/0/131070420/tefuvawumonesagabu.pdf
    • http://files.site
    • https://cdn.shopify.com/s/files/1/0439/7573/7502/files/vakos.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/51439678738.pdf
    • https://cdn.shopify.com/s/files/1/0434/5623/3638/files/17864345599.pdf
    • https://cdn.shopify.com/s/files/1/0433/5114/6650/files/sinudomuw.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/21281449983.pdf
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/wororo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/bufifolaxoji.pdf
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/dikowafinis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007072.bin
77e5976e82a7696e1c9b59b00981cbf51d5c188088acd280cff6364718888ea2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 3616 bytes
font_01_sfnt_off00007d51.bin
c8649c9347c08917eee0086bd5e7974f403febd8d20620dd739cba7c7da92a51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D51 4712 bytes
font_02_sfnt_off00008d19.bin
e093ba019c63632b0c72e950570380b9e0aa0118c7bab0136979ed1ba5d58a55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D19 10116 bytes

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