Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e305be8839cf903…

MALICIOUS

PDF

38.8 KB Created: 2020-08-30 04:37:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a0aebd72476feeeaf4acdb30c68de82 SHA-1: 56122890712855d6c6c955f348fffc79bef9bddf SHA-256: 9e305be8839cf9035a971c01e29e09a33714ed8e886e102a7f453bddb62542f6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, embedding numerous external PDF links, with a notable critical finding indicating a link to a known malicious redirector. The primary malicious URL identified is https://ttraff.com/wix?keyword=fdmr+raju+singh, which is flagged as malicious. The document body, though heavily obfuscated, contains references to this malicious URL and other benign-looking Shopify links, suggesting a potential lure or SEO manipulation tactic. No scripts were extracted, limiting the analysis of direct payload execution.

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.com/wix?keyword=fdmr+raju+singh
    • https://cdn.shopify.com/s/files/1/0437/8509/3272/files/binomial_option_pricing_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/9348/1885/files/tufotolegunisil.pdf
    • https://cdn.shopify.com/s/files/1/0449/7873/3224/files/neumonia_guia_de_practica_clinica.pdf
    • https://cdn.shopify.com/s/files/1/0466/2801/2197/files/ieee_transactions_on_biomedical_engineering_template_latex.pdf
    • https://static.usrfiles.com/ugd/3aee12_2a92f1c050d246a68fcf73ac83cf50e0.pdf
    • https://static.usrfiles.com/ugd/9219f8_cc1b510ccddb4d189f09d6b05fb6527d.pdf
    • https://static.usrfiles.com/ugd/0f5b72_2432e9a3ce9845b0993274803451ab16.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/40636545521.pdf
    • https://cdn.shopify.com/s/files/1/0435/8026/0511/files/paxerisugolejogetelixuv.pdf
    • https://static.usrfiles.com/ugd/9757e7_7181d769eb56470d8f62c90d89118270.pdf
    • https://static.usrfiles.com/ugd/b8c837_23d4e0d7390145788bea8d2e38bd1cc9.pdf
    • https://static.usrfiles.com/ugd/b8c837_80b834759d2c4e9b943af6c63b8f4b64.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_off00005389.bin
5db9214ecdfecd7f42c67463c77bcecb2ad9d31050c87d2554904ec0d6b2dc3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5389 5240 bytes
font_01_sfnt_off0000652d.bin
e67a4dd8e5de0218fc879cedc5dc087761c56bf74abc2b1ddeed4409524aad8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652D 13124 bytes

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