Malicious PDF — malware analysis report

Static analysis result for SHA-256 9358df43c3fc8961…

MALICIOUS

PDF

37.1 KB Created: 2020-08-30 01:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f706b5454d49f4c5420f3b6b162aa274 SHA-1: c25aaa287f060cab8fb2755beff5adfac66ed645 SHA-256: 9358df43c3fc8961f1b9fcf2ec6315e698cd1aac60c76500462d8ea791a289aa
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=quavo+huncho+album+zip'. Additionally, a PDF SEO link farm heuristic indicates the presence of numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0459/1462/0053/files/72655720332.pdf'. The document body also contains a call-to-action phrase, suggesting a social engineering lure to encourage clicks on these links.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=quavo+huncho+album+zip
    • https://cdn.shopify.com/s/files/1/0459/1462/0053/files/72655720332.pdf
    • https://cdn.shopify.com/s/files/1/0437/8030/9141/files/mibul.pdf
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/59415600396.pdf
    • https://static.usrfiles.com/ugd/b8c837_15e9eb2a86294556bd47030af114e33a.pdf
    • https://static.usrfiles.com/ugd/4b68be_70fe3d55c2354087a2318101a792cc20.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_99ef40118d824932970107dfb5fa2fab.pdf
    • https://static.usrfiles.com/ugd/b8c837_042bcdc01125418b8b193e4ea30b423a.pdf
    • https://static.usrfiles.com/ugd/b5472a_a8405ac2f09d4106abc21afc39d4fb28.pdf
    • https://static.usrfiles.com/ugd/b8c837_f7a807859dc34f56aad9b7afb7e94efb.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fa446c470eb4569818538220fc8a54d.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5182bc9d0404bffb1f455fad50feba8.pdf
    • https://static.usrfiles.com/ugd/daca0d_01b8ee9855a8446aa737a973bcf1e136.pdf
    • https://static.usrfiles.com/ugd/ddb60a_8168549118ca4d4186fa3dcd4cd4aaba.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_b37521d9b3cc4b81a70e12bddf2d32e7.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_off000052b7.bin
a33609479a0f2b10551f1c43481571ede56f7873ca758f2797833efdb5ae461f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B7 5208 bytes
font_01_sfnt_off0000644e.bin
73580a6078c8237e6e45bfdf98809dc08e51a855d396bbf64858596f5330a215		 pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 10688 bytes

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