Malicious PDF — malware analysis report

Static analysis result for SHA-256 c97b536d2317bd9f…

MALICIOUS

PDF

39.8 KB Created: 2020-09-05 07:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66e28a6ec4ee59985ea21dca4567f09e SHA-1: 2a03b8122e18ef28650dd0aea658bbe2117a3f56 SHA-256: c97b536d2317bd9fcd92178774bea96e55a7bc7ba2e3544e248db0b43884b630
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/pify?keyword=simple+appointment+letter+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary intent is to redirect the user to malicious infrastructure, likely for a phishing or scam operation.

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.me/pify?keyword=simple+appointment+letter+pdf
    • https://cdn.shopify.com/s/files/1/0433/9620/2661/files/69490298089.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69696378660.pdf
    • https://cdn.shopify.com/s/files/1/0437/5098/1793/files/83207862688.pdf
    • https://cdn.shopify.com/s/files/1/0429/4452/8550/files/sotutadeloladot.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/93534093247.pdf
    • https://static.usrfiles.com/ugd/3e5d97_bebd064b34e94f41ab2d7b61ee9e7f2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a275e4d28f764478b9dd137a609f409c.pdf
    • https://static.usrfiles.com/ugd/bfbc46_afc3bd38334b4471944ce23e0b1d09de.pdf
    • https://static.usrfiles.com/ugd/b8c837_be43e3f1c62e4d03850889c24c0edb5f.pdf
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/risemuji.pdf
    • https://cdn.shopify.com/s/files/1/0439/6482/5758/files/63690995620.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.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_off00005eb8.bin
e855ea91382a9b08784e158df90faf0d065775f17c46322faf7ad79aad9acb5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB8 5112 bytes
font_01_sfnt_off00007002.bin
4eefe7b9ab2e3b7c6955021609b295a8c6acb81d0aff6c826609a4eac9788f87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7002 10132 bytes

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