Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b21b6734b2bd74…

MALICIOUS

PDF

40.0 KB Created: 2020-08-23 22:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5480e590b7afb8d6db0a86d935f19e72 SHA-1: 3d63a40a78fbffbae9f3b75ff20ea22c409d4879 SHA-256: e0b21b6734b2bd743ca5e8b9dc503ef50a2fb2331ac1b5a4d378becbeab13d79
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many of which are hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the true malicious destination. The presence of a download button lure further supports a malicious intent to trick the user into clicking the link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=periodic+table+blank+printable+worksheet
    • http://pivovu.gordonstounartandphotography.com/uploads/1/3/0/7/130738948/mowazeworat.pdf
    • http://files.supervisedvisitations.net/uploads/1/3/2/6/132682640/zegerefafapesito.pdf
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/lowusekojotunurabofiduv.pdf
    • https://cdn.shopify.com/s/files/1/0431/1842/8326/files/how_to_create_a_website_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/7807/5036/files/rozaxomowujuvoginat.pdf
    • https://cdn.shopify.com/s/files/1/0436/5654/4409/files/networking_books.pdf
    • https://cdn.shopify.com/s/files/1/0454/4344/8990/files/pluriel_des_adjectifs_de_couleur.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/mercedes_eqc_preisliste.pdf
    • https://cdn.shopify.com/s/files/1/0430/8339/9321/files/ludaxipuzoresurozodulef.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/lenapogogufamib.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/jeruxizakaninapizemifuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/83880651866.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_off000059d8.bin
4346ec78da8b92d839698cfc8598ce3a88654ef60b9937804c2117a7776a089b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D8 5456 bytes
font_01_sfnt_off00006c61.bin
ebd95daad00c628ac83dca22b5f6204cce088876f2b12c219b16bf3eea456c1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C61 11532 bytes

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