Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6fd4c9fe071e484…

MALICIOUS

PDF

40.5 KB Created: 2020-08-24 22:28:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64fc7cebc6194de25f82cb7fed804016 SHA-1: 9759070e84167de476dbd82fb909ccb92b532e7b SHA-256: e6fd4c9fe071e484ca4cc4c1004af5a756274b167644fa901f6ed174e34b19c9
120 Risk Score

Malware Insights

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

The PDF file was identified as a malicious redirector and a link farm due to the presence of numerous embedded URLs. The primary malicious URL, https://ttraff.ru/pify?keyword=efficiency+of+transformer+lab+report, is likely used to redirect users to further malicious content. The document body itself contains garbled text and embedded URLs, reinforcing the link farm heuristic.

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=efficiency+of+transformer+lab+report
    • http://files.ngatipaoaiwi.co.nz/uploads/1/3/1/3/131380467/tedolajonur.pdf
    • http://files.collectiblechristmasornaments.ca/uploads/1/3/1/8/131871424/2717106.pdf
    • https://cdn.shopify.com/s/files/1/0435/4097/1674/files/9910858170.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/3037566379.pdf
    • https://cdn.shopify.com/s/files/1/0430/5970/8058/files/67247856129.pdf
    • https://cdn.shopify.com/s/files/1/0441/0913/6024/files/thriller_album_michael_jackson.pdf
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/doxosomet.pdf
    • https://cdn.shopify.com/s/files/1/0433/3800/6686/files/ginadidinolijisubonuvovaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/agenda_educadora_diferencial_2019_para_imprimir.pdf
    • https://cdn.shopify.com/s/files/1/0432/6277/1358/files/dalutaputukunari.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2858/files/vilon.pdf
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/97737415541.pdf
    • https://cdn.shopify.com/s/files/1/0435/8907/5102/files/kabbalah_portugues.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/
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/9773741554

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000603a.bin
bec4f7a3ee4af9fbeeb5ee7a270386941210f5f1e781104215fab4fea74f6275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x603A 5360 bytes
font_01_sfnt_off00007260.bin
4cdede165a36006642d29d85b578ccd15891db008ad056ca16509875c001dabb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7260 10116 bytes

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