Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47840b1cb41c708…

MALICIOUS

PDF

47.5 KB Created: 2020-07-30 07:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 422c073c11766c7939f98bb340e8dc1f SHA-1: 7372d67c9b61109d0fded60e3171147a673bea6e SHA-256: b47840b1cb41c708ba83b81238769a7b2f390a26bfc7b6a7bf805dc23b383eeb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates an attempt to direct users to a malicious site. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the document is part of a larger scheme to generate traffic or distribute malicious content. The embedded URL is part of this redirection chain.

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=azure+cosmos+db+tutorial+pdf
    • http://files.itsrealmagazine.org/uploads/1/3/2/3/132303378/bejake.pdf
    • http://files.guinodesign.com/uploads/1/3/2/6/132681826/5771821.pdf
    • http://files.harleyeaston.com/uploads/1/3/0/7/130776016/3666490.pdf
    • http://files.thewrightauthor.com/uploads/1/3/1/4/131406736/mupidevo-pavig.pdf
    • http://files.shutupandrespawn.com/uploads/1/3/0/7/130739744/xetunuvez_redoweporut_sawitatuxarixe_nulofu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/97796999358.pdf
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/rimazopefibareredixomedas.pdf
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/84664235366.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/4349224687.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zosogorimojafi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/29984195002.pdf
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/linewovonoxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/simisogasaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/jufinukakil.pdf
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/75432839754.pdf
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/rawajomomixugofodowunoxob.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_off00007a68.bin
273c2cac28e2f5d71fb731793ba9bd633ba78a177441d144add24e49f53a34cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A68 5256 bytes
font_01_sfnt_off00008c49.bin
4ec9b86d0e6524a12433e99f9c887716d5a573ff0e693d314e6ad0246fe41780		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C49 10732 bytes

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