Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc04362a5ea41cb4…

MALICIOUS

PDF

52.6 KB Created: 2020-08-29 18:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fe63abf906b1e47f749d8905cdd3026 SHA-1: 2d75dee1b335b8ef1475a47d7efcae4844b47ea6 SHA-256: fc04362a5ea41cb46db5ae1e2f50a0b52038037e3b6967e020770536b82f0a3e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wix?keyword=minecraft+pocket+edition+online+unbl'. The document body also contains this URL, presented as a lure for 'minecraft pocket edition online unbl'. This indicates a phishing attempt to redirect users to malicious content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm for SEO manipulation or to obscure the final malicious destination.

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.cc/wix?keyword=minecraft+pocket+edition+online+unbl
    • https://cdn.shopify.com/s/files/1/0440/9786/3832/files/wezarozowatovaj.pdf
    • https://cdn.shopify.com/s/files/1/0462/4790/3386/files/worakosujoxe.pdf
    • https://cdn.shopify.com/s/files/1/0437/8211/1381/files/add_blank_page_to_mac.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/adopteunmec_apk_cracked.pdf
    • https://cdn.shopify.com/s/files/1/0435/9441/6290/files/47833561737.pdf
    • https://static.usrfiles.com/ugd/b8c837_6b6aa1f6836a47dfb7b7df5241736d61.pdf
    • https://static.usrfiles.com/ugd/b8c837_455e295a74104e64b1b901251d27e431.pdf
    • https://static.usrfiles.com/ugd/b8c837_a52dcec19ad449e08cce8e75e85e1561.pdf
    • https://static.usrfiles.com/ugd/b8c837_63d90ac156de4c11bdc0aa0bbbf60d20.pdf
    • https://static.usrfiles.com/ugd/238140_575f9ebb462647c3af763fcd9023e1bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a692cca522a4a1e88e249407c9a71d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb8832ae30a74c23af99b700dc1bf57d.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb275e7da9c0471490bf517e1f9ab0d3.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_off00008fba.bin
a2cb9d1c5339f8797a567afc5ac2bf63eeeea5fe2e23f878f947bffc87d87fd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBA 5180 bytes
font_01_sfnt_off0000a15c.bin
3604dae2ef068621fbf90235c24867e3ea1172fc9c96dce9d76e34576209f73b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA15C 10668 bytes

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