Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba4ce344653a144…

MALICIOUS

PDF

46.0 KB Created: 2020-08-30 17:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43563c3a57d0da787a0b02d193c54df6 SHA-1: 10cfa587d267972d77c7e316094218498ca913de SHA-256: fba4ce344653a144582438813858940319b49085b6f66670dc400e990ab44f4f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One of the embedded links, https://ttraff.com/wix?keyword=hey+there+mr+blue, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. 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.com/wix?keyword=hey+there+mr+blue
    • https://static.usrfiles.com/ugd/05900a_69d69bce65834695affac38f6d15116e.pdf
    • https://static.usrfiles.com/ugd/9b33c5_93542578eaf84be59118921fa2b62738.pdf
    • https://static.usrfiles.com/ugd/0aab01_56331934cc324405a85c1483d2cbe94c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8448/8607/files/design_patterns_in_c_sarcar.pdf
    • https://static.usrfiles.com/ugd/b8c837_dbef19994c02481a98afd43b7786c9c2.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_45c65a54404a43408f172213ab6e2a56.pdf
    • https://static.usrfiles.com/ugd/b8c837_449b2338c7df4bd79634cab84a69969d.pdf
    • https://static.usrfiles.com/ugd/b8c837_d10816cdf84f4571815ab62f637a5402.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_78d4d4eff1054e9c9059660ca7df7490.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_ae3e12c91ac04c7f9bba209f76674d37.pdf
    • https://static.usrfiles.com/ugd/b8c837_af13f12ea6b44629b2916983f8d010b6.pdf
    • https://static.usrfiles.com/ugd/a44510_35d15d9191a2465185490dc97d5a7990.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_off00007671.bin
c5993a897add71b634e4e6a91b67d4577e2f7abaf4eabcc4e704e2711b82baa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7671 4740 bytes
font_01_sfnt_off0000866d.bin
b31c2596762a407378153c8b760e10a0e007b39ab0563b4365bd544ad7e716fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x866D 11104 bytes

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