Malicious PDF — malware analysis report

Static analysis result for SHA-256 24c46431fd8190c8…

MALICIOUS

PDF

118.9 KB Created: 2020-08-10 11:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a3d36e8946157457ab6e1849d6bebb3 SHA-1: 8ebec3f8b3132a620fa3934f6b883c9a02bf7ed4 SHA-256: 24c46431fd8190c83e647d031d2e703cbe5e6bd62d6f8d39769272399c49162b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same URL found in the redirector link, suggesting the primary intent is to trick the user into visiting this 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.com/pify?keyword=human+interference+and+impact+on+environment+pdf
    • http://files.lavenderlabel.com/uploads/1/3/0/7/130739616/1939690.pdf
    • http://files.thenecessarian.com/uploads/1/3/1/4/131453247/xixabuxos_nipuwuwewi_sufedetafebavu_bujipesefuvu.pdf
    • http://rojonemiw.woodlandnookboardingcattery.com/uploads/1/3/2/7/132710797/pogifokivapow_bixisugi_napope.pdf
    • http://files.glorytourssalalah.com/uploads/1/3/1/8/131856392/11416cf14.pdf
    • https://cdn.shopify.com/s/files/1/0434/6223/0181/files/xazorizajamilitufilupuni.pdf
    • https://cdn.shopify.com/s/files/1/0440/6758/6213/files/solidarity_poland.pdf
    • https://cdn.shopify.com/s/files/1/0438/4112/6565/files/rijofeveka.pdf
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/91928193185.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/utah_post_portal.pdf
    • https://cdn.shopify.com/s/files/1/0428/3016/8230/files/lesapaxubilonojipepuvok.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/dojajutabavujulidajenek.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/hallelujah_piano_solo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4714/8950/files/sotudoxalize.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/16424870975.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_off00019859.bin
ae444a8b219a196cb3e9ab814cee1e27d7f5e8dda6a20ba78844809749b27129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19859 5112 bytes
font_01_sfnt_off0001a9ad.bin
71381651b1a9b0024abfbbcdeb54ee6ac6f5d8fbe720c164b9be2e4172e15c76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A9AD 10704 bytes

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