Malicious PDF — malware analysis report

Static analysis result for SHA-256 84db7cb1d7184218…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 23:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53e4bf229adb5e78f355ca2c116ea08e SHA-1: 2709ef66cdb2f91d8c483b23dfee80e84f4d7ddb SHA-256: 84db7cb1d7184218820465afef988d0b8f66dcb2d9d340ecd528a67bad9809c4
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link and a link farm, indicating an attempt to lead the user to harmful content. The presence of a 'download button' lure further supports this. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a keyword search, suggesting a phishing or scam attempt.

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.ru/wix?keyword=kenneth+wuest+new+testament+free+download
    • https://static.usrfiles.com/ugd/b8c837_c31ce49a0a824c0f8d57fbc53cc4e974.pdf
    • https://static.usrfiles.com/ugd/3bf302_784d97ed33bd461687e1386da46ea14b.pdf
    • https://static.usrfiles.com/ugd/b8c837_32a12841d5254b648acbf60ff0a1acdd.pdf
    • https://static.usrfiles.com/ugd/b8c837_23aa52622ae04cd6862ec580406df94f.pdf
    • https://static.usrfiles.com/ugd/b8c837_dbf61614925c45b59beeea5a0c209236.pdf
    • https://static.usrfiles.com/ugd/b8c837_b524e3e52823497fb1243a0ed86b36d1.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/39250434939.pdf
    • https://cdn.shopify.com/s/files/1/0431/9664/5538/files/point_a_domain_to_a_directory_aws.pdf
    • https://cdn.shopify.com/s/files/1/0434/2969/1558/files/dogominurajitodaridagidi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5194/files/functions_of_management_planning.pdf
    • https://cdn.shopify.com/s/files/1/0438/8562/5499/files/cardizem_davis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdf
    • https://cdn.shopify.com/s/files/1/0435/1760/8090/files/wixugufodi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/pemib.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_off00006792.bin
52ec8e03ab75e8ebeda51e6ea26f3a7690c0b7df0c4816d9de5cdce06b5f882f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6792 5208 bytes
font_01_sfnt_off00007930.bin
a1b47d6daef7f6f6796813189379195403676e8b323fbca719dac9a64d2979a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7930 10980 bytes

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