Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e4c06b3a5177c9…

MALICIOUS

PDF

42.4 KB Created: 2020-08-02 09:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 465472d2f2730401b111b10c841d5f54 SHA-1: 5b10378789b78a42b51c284359a69276d2029283 SHA-256: c9e4c06b3a5177c98d060c89c786b48822cd93b29c74e54fe494a23988b2548a
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, many of which point to a link farm hosted on Shopify. The primary link, 'https://ttraff.com/pify?keyword=watch+battleship+free', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files, suggesting a social engineering lure to trick users into visiting malicious sites.

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=watch+battleship+free
    • http://files.hornehastingsgourmet.com/uploads/1/3/0/9/130969825/3772933.pdf
    • http://files.renaultsparesscotland.co.uk/uploads/1/3/1/4/131453188/bawivus.pdf
    • http://files.organicpricezone.com/uploads/1/3/0/7/130775448/vemobogijokaw-guloti-sapubose-pozigomebuzawaj.pdf
    • http://files.gabypruittphotography.net/uploads/1/3/1/3/131379875/lelowevuxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/23702903768.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2817/files/kigopafomuxukada.pdf
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/66681014849.pdf
    • https://cdn.shopify.com/s/files/1/0433/7834/4085/files/rifijolatoxofifimirob.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/22349409190.pdf
    • https://cdn.shopify.com/s/files/1/0432/1771/5361/files/73202293659.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/66118048428.pdf
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/94061361776.pdf
    • https://cdn.shopify.com/s/files/1/0432/7125/8278/files/introduction_to_mathematical_statistics_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/21012296910.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/rijewadidimitaraxikuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/rabuzabutofivawu.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_off0000659e.bin
9453d618d03ce721f87812ea5bfc3e4e257483a297afe9be065f2cebc8b81b05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x659E 5256 bytes
font_01_sfnt_off00007780.bin
74306fa35d79399b24733ed84b99d548bb306966a2e4c5ff6775a25242adab5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 10992 bytes

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