Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4f09769ef5e366b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-30 05:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c2b21ccc8f956bc7dc4857b9cecc8cf SHA-1: e45d1340e8e28d57e5edcf78599527dfaee44305 SHA-256: e4f09769ef5e366bd1a6a36fa0c6eddeeb8e429123598ce5e5f20532a3468cda
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=dolphin+ps4+controller+profile'. This URL is presented within the document body, suggesting a lure to a malicious site disguised as a profile for a gaming accessory. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many hosted on Shopify, likely for SEO manipulation to increase visibility of the malicious redirector.

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=dolphin+ps4+controller+profile
    • https://cdn.shopify.com/s/files/1/0428/4160/4263/files/vanivusuvimubus.pdf
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/tozapotexodoxilobexuwaror.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/bazozisutumoxofer.pdf
    • https://cdn.shopify.com/s/files/1/0433/7470/6853/files/soturutugababijaxiwid.pdf
    • https://static.usrfiles.com/ugd/8cbfce_a9264cebfb054f979374aac3b608643e.pdf
    • https://static.usrfiles.com/ugd/930050_fd9ad4ebd00444aaa4d8b74628d6e68c.pdf
    • https://cdn.shopify.com/s/files/1/0435/7000/4126/files/rivaloje.pdf
    • https://cdn.shopify.com/s/files/1/0435/9389/2008/files/sixamosususevopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2584/1819/files/52072090461.pdf
    • https://cdn.shopify.com/s/files/1/0440/6027/8936/files/gotiwalaxekawowawofife.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2f8f2fbdcf547dda6a39cd51677acb7.pdf
    • https://static.usrfiles.com/ugd/eaf48f_53c5e494f3ba4d889572d1f63d413780.pdf
    • https://static.usrfiles.com/ugd/b8c837_b89788869c5943fcbffa2295ffcc492d.pdf
    • https://static.usrfiles.com/ugd/d55797_5b13c6e33b3d4265b88f68746e484dee.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_off00006715.bin
3d3a81b84b26901c2f0731611aa2c73053b466911489fdda13cc1b6a39b74c23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6715 4980 bytes
font_01_sfnt_off00007806.bin
f5623a4606765d70ced014786c989efc5976445cebf4e0fadf7f2d1ba6c65d1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7806 10484 bytes

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