Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ad630434e9c33c6…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 23:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 953c57c9fdb05a88586e3a5b5d7a7552 SHA-1: 65986d7f624cef577407cf2441828aab998c9c21 SHA-256: 3ad630434e9c33c6e55e6a12f97309e0d9241be96593f18c0340b722ba3522ff
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=agadoo+dance+video+free'. The document body, though partially corrupted, contains text related to the 'Agadoo dance video' and the malicious URL, suggesting a lure to entice users to click the link. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to improve search engine ranking for malicious content.

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=agadoo+dance+video+free
    • http://xonuke.southsarasotamodernquiltguild.com/uploads/1/3/1/4/131437886/magajoloka.pdf
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/dorosekigabajem.pdf
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/42764695880.pdf
    • https://cdn.shopify.com/s/files/1/0433/0058/5632/files/bonegujidawawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/badunajemojasuganezulok.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/80789915109.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/jalekofedazes.pdf
    • https://cdn.shopify.com/s/files/1/0429/6438/5951/files/50897206814.pdf
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/yakuza_kiwami_2_mahjong_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/1811/5480/files/69127242104.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_off00004be1.bin
95b438a81e6008f9fa9f57f1237ee5ebf003d4f56740255d37c71418df5a75cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE1 5028 bytes
font_01_sfnt_off00005d0d.bin
c29e9a9dc99d5505da851277e33dad2b70e6111c236cbfae8500cf3124c710ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0D 9804 bytes
font_02_sfnt_off00007ee6.bin
d1e602131029547197cfeb81e0b95e6346874bc26b3ee2df650b745aa5698512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 17748 bytes

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