Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca3b63d5ddc806f…

MALICIOUS

PDF

36.3 KB Created: 2020-08-28 01:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84e9fb1b190940ccfc16692e55328cf8 SHA-1: 35be4a5b9201f8328e6f1108575ae67755b69bda SHA-256: 2ca3b63d5ddc806fd8496d6bd5bffc1d33d1797e876e895f1bb57b2b07969208
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though partially corrupted, contains the URL https://ttraff.cc/pify?keyword=master+of+the+wind+lyrics, which is likely intended to trick the user into clicking it. The file also exhibits characteristics of a PDF_SEO_LINK_FARM, with numerous embedded links, suggesting a broad distribution attempt. No scripts were extracted, and the primary malicious behavior appears to be redirection via a 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.cc/pify?keyword=master+of+the+wind+lyrics
    • http://files.mypurplelilyboutique.com/uploads/1/3/1/4/131408056/vokixidu-tekemajofepof.pdf
    • https://cdn.shopify.com/s/files/1/0433/5514/4347/files/guwinatigoxabowo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/10066315218.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/20088765942.pdf
    • https://cdn.shopify.com/s/files/1/0436/5955/9065/files/bapiparepebewusizopaluk.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/18615768942.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/9038854805.pdf
    • https://cdn.shopify.com/s/files/1/0435/6099/2927/files/c_o_c_hack_version_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/88565823268.pdf
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/javepikapogog.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/fetaduja.pdf
    • https://cdn.shopify.com/s/files/1/0432/7879/4920/files/weather_report_for_foxboro_massachusetts.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_off00004e93.bin
dc25c01b9aef402a54046514d3560bf8778a76002fa63c81bddfea94297aa621		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E93 5308 bytes
font_01_sfnt_off000060b5.bin
d1ac7ea8cf27b245ed45e7b4bce5aa3675403b0af6d66c32647b757ecdcf29cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 10620 bytes

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