Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4eba78f8f0e81cf…

MALICIOUS

PDF

57.0 KB Created: 2020-08-18 22:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83b77bc377de934c86e21993c17de2f3 SHA-1: b8e80746bd312227805e0fda86ec7f4046708b66 SHA-256: b4eba78f8f0e81cfff263726000d50a1021d47560ef8dbe05ae6d5bfce1c3241
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=designated+survivor+season+2+episode+6', is designed to lure users into clicking by referencing a popular TV show. The PDF also exhibits characteristics of a link farm, with numerous embedded links, including one pointing to potentially malicious infrastructure.

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/pify?keyword=designated+survivor+season+2+episode+6
    • http://maxopugu.compassionatewellnessoc.com/uploads/1/3/1/4/131437987/fuxizefofilobokuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/7310/9152/files/sererufuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/mipovaze.pdf
    • https://cdn.shopify.com/s/files/1/0429/0261/8278/files/blanqueamiento_interno.pdf
    • https://cdn.shopify.com/s/files/1/0437/8745/2576/files/wegok.pdf
    • https://cdn.shopify.com/s/files/1/0431/7242/9980/files/zukogufove.pdf
    • https://cdn.shopify.com/s/files/1/0435/8494/6333/files/appendix_e_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/wolf_creek_snow_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/vaxifojozumonatomezireg.pdf
    • https://cdn.shopify.com/s/files/1/0435/4811/5096/files/aura_o_las_violetas_libro.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009355.bin
180e202369da60eb892565ec141d77a359494282a0ccfca9e8eda781a94b93cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9355 5324 bytes
font_01_sfnt_off0000a57e.bin
2f6c7641846292c861532e78196fc278b174b3a85efdbf6c89df88a4b9fd4d29		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA57E 10264 bytes
font_02_sfnt_off0000c8bf.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BF 4324 bytes

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