Malicious PDF — malware analysis report

Static analysis result for SHA-256 593554de82578747…

MALICIOUS

PDF

35.7 KB Created: 2020-08-14 21:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ab710b92066dea1b51e6331c5dc8d87 SHA-1: 04b99384d5382d6af12077b216a8a128a439de3c SHA-256: 593554de82578747324fc8bb822e4a91048849971858685f2d398b2a7a58e397
120 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to numerous other PDFs, likely for SEO manipulation or to host malicious content. The primary link, 'https://ttraff.ru/pify?keyword=bearcat+scanner+bc355n+manual', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting the intent is to redirect the user to 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.ru/pify?keyword=bearcat+scanner+bc355n+manual
    • http://files.thepaintedacresranch.com/uploads/1/3/1/6/131607010/d83e813dc769eb0.pdf
    • http://files.thefilamentstudio.com/uploads/1/3/1/6/131606035/fakesijerisaz.pdf
    • http://birijeti.judywilliamsclass.com/uploads/1/3/2/3/132302766/zexasumasajebezarob.pdf
    • http://files.gregbottle.com/uploads/1/3/1/6/131606694/6a485470.pdf
    • http://luruj.michileung.com/uploads/1/3/1/4/131409236/c253c.pdf
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/96340999249.pdf
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/72716094242.pdf
    • https://cdn.shopify.com/s/files/1/0431/6187/8687/files/18279572164.pdf
    • https://cdn.shopify.com/s/files/1/0429/3538/6265/files/13103580022.pdf
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/tevuzatozaso.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/reduce_size_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/xiwinupalarirorov.pdf
    • https://cdn.shopify.com/s/files/1/0439/5764/9566/files/guxos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sesolofulazige.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_off00004d2e.bin
05155cdfa29bb7e95a0fbfbe18fe4e294ed9e2b4111ccddcfcae802825cc3b4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2E 5420 bytes
font_01_sfnt_off00005f80.bin
d03db42080e7954d7cc227ee9d5f2c68b0d079c20a288d99678172bbaae929a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F80 10172 bytes

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