Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7519deb47eb9dc…

MALICIOUS

PDF

37.3 KB Created: 2020-08-19 13:38:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e3bc56e91bb2ce7fcb8763677a07ea SHA-1: a4bb9d303930ff0872935fb4ff4f5ae9952c34f8 SHA-256: dd7519deb47eb9dc917f6e8bdcad17fc0679e996be4d26360d656b527aa06352
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to a 'Preschool attendance sheet template' and the malicious URL, suggesting a phishing or social engineering lure. The presence of a PDF link farm further indicates malicious intent to distribute links.

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=preschool+attendance+sheet+template
    • http://vabavote.faceyhistory.com/uploads/1/3/1/4/131407089/3354672.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/32627987422.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9970/files/53908134776.pdf
    • https://cdn.shopify.com/s/files/1/0430/8339/9329/files/8574137737.pdf
    • https://cdn.shopify.com/s/files/1/0431/2868/4701/files/puworebofisi.pdf
    • https://cdn.shopify.com/s/files/1/0436/4628/8025/files/furigisegatagizedibanem.pdf
    • https://cdn.shopify.com/s/files/1/0433/2974/9145/files/geofront_zero_no_kiseki.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_off000055b7.bin
b7f110f4814aac556eeb8ba02394ae6c25c0fd6d02a5da790b269bc8af5b7911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B7 5312 bytes
font_01_sfnt_off00006790.bin
885e0bad06e5a73d28a376cc10ff02311b914e488354e29e8536a158bb361dd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 9840 bytes

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