Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d76d9924420d0ac…

MALICIOUS

PDF

40.6 KB Created: 2020-09-07 04:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6981af54f6b44450423511a8ba994a75 SHA-1: 59cac1a7070d5e7e5dd0404b6a13230fba1631fa SHA-256: 3d76d9924420d0ac0cc2b083daba67b54cf069981f7cb185f2ae581056e0c53f
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.me/wix?keyword=hadoop+ecosystem+cheat+sheet, suggesting a lure to download further content or visit a malicious site. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to known 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.me/wix?keyword=hadoop+ecosystem+cheat+sheet
    • https://static.usrfiles.com/ugd/b8c837_d37f782aa0d8453083f83d42f24afbc5.pdf
    • https://static.usrfiles.com/ugd/2994dd_3b5bfad996254a05b32aaa16ba3db73d.pdf
    • https://static.usrfiles.com/ugd/3bcfef_8a7b761a4a574b489850acde8bb6fa5b.pdf
    • https://static.usrfiles.com/ugd/ebc5f9_9a1d87c0c2db4963b9cfc0dd89eaf0b7.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/klingersil_c-_4401_data_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/zojekibatakitezug.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6123/files/61631732146.pdf
    • https://static.usrfiles.com/ugd/c5d40f_ddcd4250c2d2426aa070d8f0631dd5c6.pdf
    • https://static.usrfiles.com/ugd/717a42_70a25d31b0e444778e516cfd884c541e.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd478a87a217432d8bf1dbebc761b52b.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/zotejawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/81792980332.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_off000060cb.bin
a07804f6733c7c741cfae478ecbd30011c4dce4ec05f12111fed01c03e26040e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60CB 5248 bytes
font_01_sfnt_off00007286.bin
bcbb6a0b86add85ed7194d7bc7830d4f1d9446d14ea711896c53ab995a41a810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 10316 bytes

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