Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc53119ccf1a0ae…

MALICIOUS

PDF

64.0 KB Created: 2020-08-29 17:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cdabd6c350d3c847f0ad8a482c0744f SHA-1: e50cfedfec8e75df64b44bc274d3e042ab285aaa SHA-256: ffc53119ccf1a0ae6f86a039d9a5213960576e6867fd5840644b954deec308a2
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, pointing to 'https://ttraff.com/wix?keyword=john+paton+missionary'. This URL is likely used to redirect the user to a malicious site. The document also contains a PDF link farm heuristic, indicating a large number of external links, many of which are benign Shopify URLs, but one critical redirector is present. The document body, though heavily obfuscated, contains the malicious URL.

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=john+paton+missionary
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51686393220.pdf
    • https://cdn.shopify.com/s/files/1/0435/9903/6573/files/90476772170.pdf
    • https://cdn.shopify.com/s/files/1/0430/7245/4810/files/ralugemilazemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/jutonekugaviveboze.pdf
    • https://cdn.shopify.com/s/files/1/0434/2503/8497/files/wisuw.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ea909af08f64bdaa4c5220f14457c2e.pdf
    • https://static.usrfiles.com/ugd/b8c837_dfa500f60d3449a1bfd641fce0364fba.pdf
    • https://static.usrfiles.com/ugd/b8c837_03ff8a4c2e3f40aeb13f5f2362224798.pdf
    • https://static.usrfiles.com/ugd/912de2_105e22ca40ad4e9a96f72e1fb4a56588.pdf
    • https://static.usrfiles.com/ugd/b8c837_16f9b168beec40f4aba744411290e806.pdf
    • https://static.usrfiles.com/ugd/b8c837_92a6cbb52b6147bfa79d947dc61c8ac9.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ef2931f2fca4d4a996132cce2ed8624.pdf
    • https://static.usrfiles.com/ugd/b8c837_784ab9ff4f1f49e38983d04f34a910e7.pdf
    • https://static.usrfiles.com/ugd/906e9f_4b9cdfd2951149d2a0e2b52aa2ac517d.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/
    • https://cdn.shopify.com/s/files/1/0435/99

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd97.bin
e753799aec100fa7d7e64fd34f24dd0c845a61b412ae15def9a31decbe419b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD97 5116 bytes
font_01_sfnt_off0000cecd.bin
67fe2bf09787ab02865d4ec8aca3214bdead398b86f2361e4251adb5d8317ab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCECD 10712 bytes

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