Malicious PDF — malware analysis report

Static analysis result for SHA-256 d61a00d414924281…

MALICIOUS

PDF

41.2 KB Created: 2020-08-28 23:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 763e7ef33a06d3cbaa552c0dc9b2cd5b SHA-1: 9896f08919d7028eb56670d6fed4fcd667f43fef SHA-256: d61a00d414924281de451b79611a22bdeba83c716b9369424d683a8df53d3763
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/wix?keyword=easy+plywood+canoe+plans'. This indicates a social engineering attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics.

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/wix?keyword=easy+plywood+canoe+plans
    • https://static.usrfiles.com/ugd/b8c837_5c60dc9215f24256a5f9b967047a8e19.pdf
    • https://static.usrfiles.com/ugd/b8c837_66def0301fec4b8982a9bcd60fb46537.pdf
    • https://static.usrfiles.com/ugd/b8c837_fd358eb5139245329059b49ec75e6d3d.pdf
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/keratodipaporuxafap.pdf
    • https://cdn.shopify.com/s/files/1/0434/1507/7022/files/arduino_uno_filetype.pdf
    • https://cdn.shopify.com/s/files/1/0436/9973/2633/files/papetadotozusowotolaneso.pdf
    • https://cdn.shopify.com/s/files/1/0440/7210/8197/files/90243158008.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/classes_of_fire.pdf
    • https://cdn.shopify.com/s/files/1/0432/1945/2063/files/70087741307.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd09ff8b39dc45ffbba8d63e1564af44.pdf
    • https://static.usrfiles.com/ugd/b8c837_771bd48058614aebab9436fb5aa7caeb.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4e60a866d5641c7a107ae86a43722e5.pdf
    • https://static.usrfiles.com/ugd/b8c837_6c266b54b4b447ba8891eae0752843d8.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_off000061fa.bin
bacb9b54fb423e817b6bd6fbb7ed1a78d91865b57cce6b01f442d53e0109c5c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61FA 5124 bytes
font_01_sfnt_off00007391.bin
32a7d1c1bae4c8736e67b6c277c6188d1c4a0ec26d68a879d76974f04e398045		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7391 10256 bytes

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