Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c51f20e7a644cd…

MALICIOUS

PDF

49.7 KB Created: 2020-08-26 04:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fc0d61f06dc987f365d893b8490cb29 SHA-1: 12933ee92165d85459c74234d7555a6c1e658422 SHA-256: 23c51f20e7a644cd5f4ad2903e8f82a5541826fd2b4b424e844e48b41df3f929
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link disguised as a manual for a Branson 2210 ultrasonic cleaner. This link, https://ttraff.com/pify?keyword=branson+2210+ultrasonic+cleaner+manual, redirects to malicious infrastructure, indicating a phishing or redirection attempt. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDF files, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the primary malicious action is the redirection via the embedded link.

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/pify?keyword=branson+2210+ultrasonic+cleaner+manual
    • http://files.pattiek.com/uploads/1/3/0/8/130814052/mudojivizo.pdf
    • http://files.elizabethkpetersonlab.com/uploads/1/3/1/3/131384789/sibufajoj-xuvini.pdf
    • https://cdn.shopify.com/s/files/1/0435/3540/1109/files/2818981906.pdf
    • https://cdn.shopify.com/s/files/1/0440/3062/3894/files/kevek.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/aprendizaje_cooperativo_libros.pdf
    • https://cdn.shopify.com/s/files/1/0437/7883/4583/files/wisofagozu.pdf
    • https://cdn.shopify.com/s/files/1/0440/5159/5429/files/casey_at_the_bat_answers_key.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdf
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/9522711.pdf
    • https://cdn.shopify.com/s/files/1/0432/3229/7124/files/fubexoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6962/7799/files/618_314_8096.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/gizeto.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063b8.bin
4e6044a2ffa098af168be853bec5a928b28c1faf3812fc0c23f782ddb58471da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B8 1736 bytes
font_01_sfnt_off00006c20.bin
6b3065b1cf416f9f96b58b56ac01d144a94fe83aaf89991903e0184505268f09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C20 5320 bytes
font_02_sfnt_off00007e15.bin
5c9de6f2402f58f2cace1eff6aa62df1efb30ffb787672e4b5af283a324b6655		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E15 11356 bytes
font_03_sfnt_off0000a48e.bin
5edac04c6345d8ffa16ac62e178ca079e739f8bc1ed9a3b067e766a32f6bb482		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA48E 16268 bytes

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