Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0db6031fc520e5c…

MALICIOUS

PDF

41.4 KB Created: 2020-08-23 09:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58dd9714bf628cba9395d3ba859cdb28 SHA-1: c154624ecd4e1d1511a93e1fe4774ae31c4a1b94 SHA-256: a0db6031fc520e5cfb9881af6374e0dd9bfd9078a145d1f87c7d15786929ea43
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.ru/pify?keyword=cognito+api+gateway+lambda+cloudformation, is the primary indicator of malicious intent. This suggests the document is designed to lure users to a potentially harmful website. No scripts were extracted, limiting further analysis of the execution chain.

Heuristics 2

  • 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.
  • 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.ru/pify?keyword=cognito+api+gateway+lambda+cloudformation
    • http://files.carrowmore.us/uploads/1/3/1/3/131379650/22e8533cef4410.pdf
    • https://cdn.shopify.com/s/files/1/0434/7599/2728/files/68165591673.pdf
    • https://cdn.shopify.com/s/files/1/0432/1250/5243/files/70890683164.pdf
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/16787923152.pdf
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/61525282162.pdf
    • https://cdn.shopify.com/s/files/1/0437/1772/2280/files/xezesotugatugof.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7394/files/garumovufufavumugel.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/chelsea_vs_sheffield_united_highlight.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_off00005c32.bin
f12c836ea604de80098e9ceb1a95edb60bcd1a52b7e2d356e3b8de0c2b44d581		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C32 5536 bytes
font_01_sfnt_off00006f09.bin
c55dd007e39e9fb39a818c82b8f6a6a2246860f92130ce0fdee1662d0d53189c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 13200 bytes

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