Malicious PDF — malware analysis report

Static analysis result for SHA-256 532148befa36b685…

MALICIOUS

PDF

34.1 KB Created: 2020-09-08 15:08:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77db8818dc3c350b26081f247cb4fa28 SHA-1: 2c3aead4c4c438b52fc37ed5f27c744145917138 SHA-256: 532148befa36b6851c5d963e8c29c2e50cfd0e470415c0aaa9eba1d0b8c4a6ca
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure via the URL 'https://ttraff.me/wix?keyword=d%2527+banj+song+bother+you'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links pointing to external PDFs, including one hosted on Shopify. The presence of a visual download button lure further supports the malicious intent. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking PDF links, suggesting a deceptive lure.

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.me/wix?keyword=d%2527+banj+song+bother+you
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/58458736745.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/xesumotizuxiwojapudapuge.pdf
    • https://cdn.shopify.com/s/files/1/0466/5989/5461/files/telecharger_cardboard_camera_apk.pdf
    • https://static.usrfiles.com/ugd/8f6098_781f2041052846d2af381afb1dd7cfe1.pdf
    • https://static.usrfiles.com/ugd/e5cbe5_34a04dfd0ad94cdfa1225c80b9c6d278.pdf
    • https://static.usrfiles.com/ugd/824332_1e0214f64e9e4ee2b6686f8391ce7b3e.pdf
    • https://static.usrfiles.com/ugd/963627_d3df1af65d3c4430a67f32a7fc467bb1.pdf
    • https://static.usrfiles.com/ugd/111c46_73a07fde8a79484983efe3dffc3c3e96.pdf
    • https://static.usrfiles.com/ugd/9e41f0_f3d76be8a66b4aa493227d16038fed30.pdf
    • https://static.usrfiles.com/ugd/6c98bc_6bf83c5465194e39ad3e513a47c1444a.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_e7c5815eb838436891a0f4447f82b571.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_1b7d91a6b8b249aabf5ce9578a6d0ec3.pdf
    • https://static.usrfiles.com/ugd/6166c9_c566875155db4757bdfdd764a8d104b9.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae8aa26db7604d56a0b0802afefb5860.pdf
    • https://static.usrfiles.com/ugd/b926a8_473c41106eac404d8dcba27720130127.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_off00004627.bin
4d0d87698fa501205da1da5989ddf5f06eb8f3c71c65153b8beb6289c20d0dcc
pdf-font-stream PDF embedded font (sfnt) at offset 0x4627 5264 bytes
font_01_sfnt_off0000581f.bin
6de620122b029348929eec733de3fcfbb95a7344f135213aadb5af38719d5b2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x581F 10420 bytes