Malicious PDF — malware analysis report

Static analysis result for SHA-256 c477a6c26d3e3f88…

MALICIOUS

PDF

38.9 KB Created: 2020-09-02 02:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66495f13043de003644562761dc9bb75 SHA-1: 37b4a1fcf5f1f80f33ff293722fd3632d632d829 SHA-256: c477a6c26d3e3f88f46629a3bbfebf595a6e82f56ff29c4aea7bcf728132e095
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, disguised as a nature wallpaper download, redirects to known malicious infrastructure. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, likely for SEO manipulation or to obscure malicious activity.

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.link/wix?keyword=nature+wallpaper++full+hd
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/kdoqi_guidelines_peritoneal_dialysis.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/45779706284.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/illuminatiam_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0440/5598/6341/files/bipasubumuvodoxululebul.pdf
    • https://cdn.shopify.com/s/files/1/0462/3109/3397/files/fagawunitirizega.pdf
    • https://cdn.shopify.com/s/files/1/0433/7811/4727/files/89531775774.pdf
    • https://cdn.shopify.com/s/files/1/0462/3810/5749/files/financial_accounting_in_an_economic_context.pdf
    • https://cdn.shopify.com/s/files/1/0434/6403/2422/files/15664741810.pdf
    • https://cdn.shopify.com/s/files/1/0437/8312/7201/files/livro_candidiase_tem_cura_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0429/2545/7574/files/fewun.pdf
    • https://static.usrfiles.com/ugd/b27199_4f6951cc85a44ac992a3e989fd3b6f94.pdf
    • https://static.usrfiles.com/ugd/45fd81_348f17df736d4df6b941050de34830f6.pdf
    • https://static.usrfiles.com/ugd/ac51ce_712e1d6121c24df8a31504fcdaa93da9.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_off00005ae0.bin
8aba016cb49ef469c4d0ca66ed6647687973cbad7bc20770003a3c2905503098		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE0 5012 bytes
font_01_sfnt_off00006c00.bin
f3151dbd935d46bf9f745079dca8c1de6588e519da1818069443f4fa3d0d2550		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C00 10512 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.