Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9804cb6c770160c…

MALICIOUS

PDF

47.3 KB Created: 2020-08-20 19:23:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 757b13427b0922e602e32ba7da797cb6 SHA-1: cdca900a20e17bc38966b109f97fbc00a339e1a5 SHA-256: e9804cb6c770160cd8c2a60022c8f135b52b4f7e2b1673c8b9e822f51b179973
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a 'Bajaj Allianz travel insurance premium chart pdf'. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify. This suggests a phishing or scam attempt designed to drive traffic 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=bajaj+allianz+travel+insurance+premium+chart+pdf
    • http://files.vetsourcecanada.com/uploads/1/3/0/8/130873708/9817695.pdf
    • http://files.erikakruse-photo.com/uploads/1/3/0/7/130740017/d20f5b806c41d9.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/60571498686.pdf
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/witijujanukulilitezojure.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7912/files/31779366168.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/4786966572.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/nituzopiw.pdf
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/tasadonukonanewimomeloxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8722/4213/files/mulonaraxusavirub.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/a_political_philosophy_arguments_for_conservatism.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/2004/files/non_chronological_reports_year_3_animals.pdf
    • https://cdn.shopify.com/s/files/1/0437/0890/7688/files/teboluxez.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_off00007952.bin
c9ffd353d546bb785f20455f3fde12a684e13beb190081c32f7269f8a8e5a543		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7952 5628 bytes
font_01_sfnt_off00008c57.bin
fef93030e08eb9bbeedb5c071a1c0cfa190684f003acc62f49505467e753fc84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C57 10520 bytes

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