Malicious PDF — malware analysis report

Static analysis result for SHA-256 b28600500245ea8a…

MALICIOUS

PDF

44.7 KB Created: 2020-08-29 12:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 866ce22f8938060cc594f98e338b2b45 SHA-1: 81a9c0a89e09451f7e19593467d5bdcafcf3fc7e SHA-256: b28600500245ea8aca3d11d0567d320a430a307bda6f60ff6eb6aab61e98e31d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=roland+fantom+x6+driver'. The document body, though heavily obfuscated, appears to contain keywords related to hardware drivers, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of embedded links, many pointing to benign content but originating from a potentially malicious redirector, indicates a link farm or SEO poisoning tactic to distribute the malicious URL.

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.ru/wix?keyword=roland+fantom+x6+driver
    • https://static.usrfiles.com/ugd/b8c837_bf741a8d945f49c5a699f7df45f2abdf.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca8dce59ae8643be993c3adc33c90af7.pdf
    • https://static.usrfiles.com/ugd/b8c837_302454ce0cdf42f5b196069a7f5d608f.pdf
    • https://static.usrfiles.com/ugd/b8c837_dbfb65b7e1a24f628eca6b1112a25e08.pdf
    • https://cdn.shopify.com/s/files/1/0451/1285/2632/files/psicologia_autoconhecimento.pdf
    • https://cdn.shopify.com/s/files/1/0431/4320/0929/files/57970424789.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/22051890658.pdf
    • https://cdn.shopify.com/s/files/1/0432/3963/7155/files/87583569980.pdf
    • https://static.usrfiles.com/ugd/b8c837_2b1bded44bc649df9930a58778dcf501.pdf
    • https://static.usrfiles.com/ugd/b8c837_2feb2f00adbc4d52b2ca40b7817f0849.pdf
    • https://static.usrfiles.com/ugd/b8c837_3250571d08e34dd3aafda7f24b4ce9c5.pdf
    • https://cdn.shopify.com/s/files/1/0433/9944/6693/files/misiwimapa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/xanerupumipalawimodofefup.pdf
    • https://cdn.shopify.com/s/files/1/0437/5104/7329/files/buwogo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2961/0141/files/bewedirazogoxodumijudad.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_off0000727e.bin
4aedc237918ec79394d4bf4663914e53342c4075215746f01adda0788794c7d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x727E 5164 bytes
font_01_sfnt_off000083ff.bin
52ec50d95fd975931c5b58a3a0c9d2f6fb47c2c5b8b2d0f9ed8d44c6abd276e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83FF 9844 bytes

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