Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb141aa6a55a526b…

MALICIOUS

PDF

238.0 KB Created: 2020-08-08 15:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76c60426fcb1f5336e7aa054e32d845d SHA-1: 6e2a803d657aa990ca0b81ada85e2fa3893f2157 SHA-256: eb141aa6a55a526b4cf58916aae1db3c0d3cadaa70231e8ad5e455e9af72deb2
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.ru/pify?keyword=behavioral+biases+in+investment+decision+making+pdf, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it is the primary mechanism for luring the user to a malicious site.

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=behavioral+biases+in+investment+decision+making+pdf
    • http://files.sproutsmyanmar.com/uploads/1/3/2/3/132302863/giburapudiga-dojowul.pdf
    • http://files.secondsundayride.org/uploads/1/3/0/7/130775979/mokole-pagop.pdf
    • http://files.blmslibrary.org/uploads/1/3/1/6/131606644/ebdfe5.pdf
    • http://files.harestanesglassstudio.com/uploads/1/3/0/9/130969558/mesakilijejabikulu.pdf
    • http://files.independenceconcretecontractors.com/uploads/1/3/1/8/131871938/3660508.pdf
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/12107878127.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/farolibulezumizopop.pdf
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/free_printable_math_worksheets_for_1st_grade.pdf
    • https://cdn.shopify.com/s/files/1/0439/3913/5643/files/60631100254.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3442/files/tivoxizawiwumotiribawoli.pdf
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/vavojojotegox.pdf
    • https://cdn.shopify.com/s/files/1/0429/9315/6259/files/18767679586.pdf
    • https://cdn.shopify.com/s/files/1/0429/6038/8259/files/sugigadorak.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6352/files/rapeguf.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/30958801130.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.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_off00034d7d.bin
579a81b9e3dba0f35d96ac7de56ff9a51bfb7f49193a6c08e22bde0e0386480a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34D7D 5884 bytes
font_01_sfnt_off00036161.bin
072d2e29066b779d35fa654b98483f2124e7f15dcfe1f9399f769d202c9b0629		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36161 16008 bytes
font_02_sfnt_off000393c9.bin
49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648		 pdf-font-stream PDF embedded font (sfnt) at offset 0x393C9 16148 bytes

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