Malicious PDF — malware analysis report

Static analysis result for SHA-256 43ab8311de9c3472…

MALICIOUS

PDF

83.4 KB Created: 2020-08-29 21:12:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63063584015f7b289330b7115ddb32c9 SHA-1: 6c2cdf3863d42e3d8c51bc24274dd993218d3fea SHA-256: 43ab8311de9c3472f6d1d8a278b8f2bdfba2f2cb1aba4c934c1430b7e9d3b9cd
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=the+laramie+project+play+script'. The document body also contains this URL, suggesting it is the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on shopify.com, likely for SEO manipulation to increase visibility.

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=the+laramie+project+play+script
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/63632531086.pdf
    • https://cdn.shopify.com/s/files/1/0454/1965/9420/files/latuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/6333668478.pdf
    • https://cdn.shopify.com/s/files/1/0437/5730/6007/files/wifirogetuvanakulukokija.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/nafux.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5907/files/fikoxusivutusuradelu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/lemafotivuvipide.pdf
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/bamil.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/29220957338.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/sukikowo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/82018151190.pdf
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/20377440783.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/vezasulubaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/2499/7800/files/kukezuxowisofebamepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46905239833.pdf
    • https://cdn.shopify.com/s/files/1/0439/8927/0686/files/sadaluvewum.pdf
    • https://cdn.shopify.com/s/files/1/0430/6078/9409/files/html5_flipbook.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_off00010b13.bin
d127d9e431db692cad16d39d01463cc3821b41bf3fbe3bf5603074b62afbd39c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B13 5300 bytes
font_01_sfnt_off00011d04.bin
a5a90fa0e4be51284336f29d72e1d86450920b90d7b799994d14e58da273519d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D04 10424 bytes

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