Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2545c7831e9dc2…

MALICIOUS

PDF

39.7 KB Created: 2020-08-30 06:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 894266b45ed6c9d17b45552432ce919b SHA-1: 208ca18b76f407f32f23d322b738c599a2f1064a SHA-256: fb2545c7831e9dc2541abf71be0815e56630d50859b9fafe387ef03329d95ad8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=marriage+covenant+derek+prince'. Additionally, it exhibits a PDF link farm behavior with numerous external links, many hosted on 'static.usrfiles.com'. The document body contains garbled text but also includes the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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.ru/wix?keyword=marriage+covenant+derek+prince
    • https://static.usrfiles.com/ugd/89363e_41b59a224bd6412396b649432563c611.pdf
    • https://static.usrfiles.com/ugd/b8c837_cdb5030780234191b93f561bbb4bf0f7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c079e397d6b543469c9d93c04b4a128c.pdf
    • https://static.usrfiles.com/ugd/40512e_247f874e08c2476b8cc2d207c2f517e0.pdf
    • https://static.usrfiles.com/ugd/eaf48f_d60554a539734a4999886e3b05bba19b.pdf
    • https://static.usrfiles.com/ugd/271e65_001b704efc2743c7894503db84f5cd35.pdf
    • https://static.usrfiles.com/ugd/2ac701_8ae795c647a7432ca52d80dd1bb8606f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a869920c2be9433d96f3d89cfd14d061.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc9fbe74a5f4431db8ba452051342171.pdf
    • https://static.usrfiles.com/ugd/0c8cc8_5d304e3ebd2848328b85ed9c3e99c9e0.pdf
    • https://static.usrfiles.com/ugd/cc03df_a8256b46d1164f1790419aa05cf856fe.pdf
    • https://static.usrfiles.com/ugd/dad90e_850fb4469a8f44daa79d592cab0df33d.pdf
    • https://cdn.shopify.com/s/files/1/0434/5580/7654/files/59368294078.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nefodegaxinavikiva.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_off00005dea.bin
d115dc6d3c830f957c037632f8890fb4d9dcb25591effcd695c03cc6bf76516e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEA 5160 bytes
font_01_sfnt_off00006f97.bin
e38833b26e7f01d3f7df1c93c4bc42691234f66d2eede7aacab9462d041cf9a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F97 10344 bytes