Malicious PDF — malware analysis report

Static analysis result for SHA-256 260c132cada06549…

MALICIOUS

PDF

49.9 KB Created: 2020-08-31 00:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 904ba9a6dd5123e8a6b3660d77f9f119 SHA-1: c413d427592dcd632b47077b59b74e1f86e25b73 SHA-256: 260c132cada06549dee2e892d2d02257127858c102e96570146553719acc932e
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 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to 'static.usrfiles.com'. 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=4+bedroom+house+design+in+ghana
    • https://static.usrfiles.com/ugd/b8c837_e410d01fb5eb4f5bae7a3678bc2012ba.pdf
    • https://static.usrfiles.com/ugd/b9801a_3aa11121f27342ea89d8c0f32863027f.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e2332e9d968435c90a88c7900c7f6ca.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_3720a381b1984a3ab8c2d75ccf3e9dd5.pdf
    • https://static.usrfiles.com/ugd/1e32c2_f89818fee1004d448a32ee7f9c154109.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/39696042824.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/poulan_p3314_manual.pdf
    • https://static.usrfiles.com/ugd/b58d21_d6698a3682b0417b93f9fb530fdea463.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_802ba8f2a1f742428cd6bd9fa82ab823.pdf
    • https://static.usrfiles.com/ugd/c1108c_0b93eef092504e62b26d9d15654b5f29.pdf
    • https://static.usrfiles.com/ugd/81d6a4_e38dd220c2a641f9b1beeefd4c044408.pdf
    • https://static.usrfiles.com/ugd/ac51ce_f347cb9662294bbbae5c9b29d22d5e62.pdf
    • https://static.usrfiles.com/ugd/b8c837_3be500aae3ec4f30908e389f6d583f57.pdf
    • https://static.usrfiles.com/ugd/03ae60_870052ce3afa4ee4ba71d202abbf06d3.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f4a.bin
20c9287043584c11cf3cb90b6bfda87e70c1990bbe1b7cbd412e99a6e65b1e6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4A 5144 bytes
font_01_sfnt_off00008087.bin
865635e0692b06522503317b88c6153b786cc111f5f2758a148f80f3aa7fd118		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8087 13860 bytes
font_02_sfnt_off0000ac4d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC4D 4324 bytes

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